Age of Sigmar/Tactics/Chaos/Disciples of Tzeentch

Allegiance Abilities

Battle Traits

If your army has a TZEENTCH allegiance and chose to take the TZEENTCH allegiance abilities, it has the following rule:

Master of Destiny: After set-up but before rolling for first turn, roll 9 dice and bank them as "destiny dice" that you can use in place of casting, unbinding, run, charge, hit, wound, save, damage, or battleshock rolls. Though you must use one destiny dice per dice, so to completely control a charge, you must use 2 destiny dice. At any moment, your army can't have more than 9 dice.

Naturally, as you have a very limited pool of Destiny Dice and most ways of regaining them require either expensive Battalions, wasting spells or more convoluted means, you want to make the most of them. So, in other words, do not disregard 1s and 2s, as they can still be useful.

1s and 2s are most useful for Battleshock tests, where rolling low can mean the difference between the unit hanging on (and, in the case of Daemons, potentially regenerating) and the unit being killed off.

6s are most useful for when you want to activate some ability that triggers on Hit rolls of 6+, in your army this will mostly affect Skyfires. If you have a Tzaangor Shaman nearby, 5s can be used for this as well. By setting three of three Hit rolls in this fashion, you have a very decent chance of deleting an opposing Hero within a single barrage. And believe you me, shooting the Bloodsecrator out of a Bloodreaver mob might not make you friends, but it sure as hell can win you the game.

3s and 4s are the really awkward ones and are probably best used for casting rolls. A single Destiny Dice 4 sacrificed already guarantees a successful casting of Daemonic Power, after all.

Command Traits

There are actually three tables to pick Command Traits from for you. One for Arcanites, one for Daemons and one for Mortals. If you have a combination of those keywords, you can pick which table you take your Command Traits from, though 1-3 are almost exact copy-pastes on all three tables.

An ARCANITE General of an army with a TZEENTCH allegiance and has chosen to take the TZEENTCH allegiance abilities can choose one of the following Command Traits:

Arch-sorcerer: Allows your hero to know 2 more spells from the Lore of Fate. Take it only if your Magister is your leader as he is the only one able to abuse this (with good rolling of course... or just as planned?) Otherwise a nice one for a Gaunt Summoner or a Curseling.
Nexus of Fate: Roll a dice at the start of your hero phase, you can (but don't have to) replace one of your Destiny Dice with rolls of 1 or 6. Do you feel that you have too much 3s and 4s? Works only when your general is on the battlefield.
Magical Supremacy: Increases dispel range to 27 for your general. Abuse this on the Curseling! Adds 50% to his dispel range and if he does dispel it then he gets to cast that spell without your opponent being able to dispel in return.
Boundless Mutation: Hero phase 2+ d3 wounds heal but if a 1 is rolled hero takes a wound and if it kills him he becomes a spawn. Risky but it can keep you alive so you can cast more spells.
Cult Demagogue: +2 bravery to all Tzeentch arcanites within 9". Can be very hekpful if you plan on having hordes and keeping em in the fight longer. On the other hand, all the 1s and 2s on your Destiny Dice will probably be used to auto-pass important Battleshock tests anyway, so this is only marginally helpful.
Arcane Sacrifice: In the hero phase you can deal d3 mortal wounds on a friendly unit. If you do so then your hero gets +9 to range and rerolls to cast. Sooo... that curseling... i don't know... but i think he can abuse these command traits... He can steal spells on a longer range and if you steal an expensive spell then he is more likely to cast it.

A DAEMON General of an army with a TZEENTCH allegiance and has chosen to take the TZEENTCH allegiance abilities can choose one of the following Command Traits:

Arch-sorcerer: Allows your hero to know 2 more spells from the Change Lore. On a Lord of Change, this could be pretty fun, but on Heralds it's a waste of space.
Nexus of Fate: Do you need more 1s for resurrecting Horrors? Or 6s to make your spells unbindable?
Magical Supremacy: Put on the leader of an Aether-Eater Host for best effect, though additional unbinding range is always appreciated.
Daemonic Spark: Once per battle, your general increases damage of his melee weapons by 1 for the rest ot the turn. A temporary damage boost may sound awesome, but think for a moment who can get this: Heralds, Fatemasters, Gaunt Summoners, Tzaangor Shamans and Lords of Change. Except for the Lord of Change and the Fatemaster, none of these want anything to do with melee and the damage boost is not particularly helpful on those two. Pass. BUT, you can use it if your general is a Daemon Prince, it could be nice given that you hit.
Incorporeal Form: Enemy units subtract 1 from all hit rolls in combat phase when they target the General. Again, your General most likely wants nothing to do with melee, but if you want to help him survive if he gets stuck in, you can do much worse than this.
Aether Tether: Rerolling Saves of 1 may not sound like much, but it could end up saving your ass.

A MORTAL General of an army with a TZEENTCH allegiance and has chosen to take the TZEENTCH allegiance abilities can choose one of the following Command Traits:

Arch-sorcerer: Allows your hero to know 2 more spells from the Destiny Lore. Take it only if your Magister is your leader as he is the only one able to abuse this (with good rolling of course... or just as planned?) Otherwise a nice one for a Gaunt Summoner or a Curseling.
Nexus of Fate: The same as above, but now you have more options to use it with Tzeentch-marked Slaves to Darkness. Need an additional dice for unbindable Daemonic Power? Go for it. Worrying about killiness of your Chaos Lord on Manticore? Go for it.
Magical Supremacy: Increases dispel range to 27 for your general. Abuse this on the Curseling! Adds 50% to his dispel range and if he does dispel it then he gets to cast that spell without your opponent being able to dispel in return.
Blessing of Tzeentch: A 6+ Save-after-the-save. Pretty standard, but not bad at all. Put on an Ogroid to further extend his huge Wound count.
Soul Burn: Wound rolls of 6 or higher damage by an additional mortal wound in melee. Interesting on an already killy General like a Marked Chaos Lord or an Ogroid, worthless on a caster.
Illusionist: Lower Hit rolls against your General at range by 1. This could save his bacon from the inevitable barrage of shots that will doubtless be headed toward your General.

Treasures of the Cults

One ARCANITE HERO in an army with a TZEENTCH allegiance and has chosen to take the TZEENTCH allegiance abilities, plus one ARCANITE HERO for every battalion selected, can choose one of the following Magical Artefacts (weapons of mounts can't be upgraded this way):

Ambition's End: If this weapon causes an unsaved wound. On a 5+, it causes an additional mortal wound and the target forgets a random spell if a WIZARD. A Wizard in melee is a dead Wizard anyway , so why bother with this? Unless you are a meatwall named Ogroid Thaumaturge and that Wizard is a Monster, that's it.
Secret-Eater: If a HERO is slain by this weapon, you can roll and add another dice to your destiny dice pool. Against Hero-heavy armies, this might be good, otherwise pass. No specifications if it is a melee or ranged weapon.
Spiteful Shield: Roll a dice for each successful hit against you, on a 6, the attacker takes a mortal wound after his attacks have been done. Could be a nice deterrent from punching your Hero, but there are better ways to go about it.
Souldraught: Once per battle you can drink and roll 3 dice to cast and unbind, taking the highest 2 until the end of the phase. Utterly worthless on a one-spell-and-unbind-per-turn Wizard, but a Gaunt Summoner who wants to make sure his Infernal Flames spell goes off will want this.
Glamour Fetish: Opponent adds 1 to battleshock rolls within 9" of this model. Eh. Pass and take something to kill enemies better.
Windthief Charm: Once per battle, the bearer can move twice as far and count as flying while doing so. Nice for strategic repositioning and nothing says that there it can be used only in the movement phase or only in your turn. If you decide to take a foot Gaunt Summoner, this can move him out of trouble just as someone charges him- but be wary of flipping tables.

Fated Artefacts

One ARCANITE or MORTAL HERO in an army with a TZEENTCH allegiance and has chosen to take the TZEENTCH allegiance abilities, plus one ARCANITE or MORTAL HERO for every battalion selected, can choose one of the following Artefacts, though they cannot replace the weapon profiles of a mount:

Wicked Shard: Reroll 1s to wound but if the bearer succesfully cast/ dispelled a spell then he gets to reroll all to wound rolls. Good on a hero who is good in combat and dispelling ~~(*cough* Curseling *cough*)~~ Since the Wicked Shard only enhances one weapon, it doesn't really help the Curseling, whose damage output is spread out over three mediocre weapon profiles. Now, if you were to give it to the Ogroid's staff...
Changeblade: If you get a kill with a weapon chosen as this then whenever you kill an enemy hero you get a pet spawn- Oh god N- AGHRBHLAR. Good with a hero with high mobility so he can run after weak targets, otherwise its an alright weapon. Unfortunately, the spawn can't do anything the end of the turn- wait NOOOGHLKGBHGB In Matched, this weapon is not too terribly useful, as you have to set aside those 60 points for something that might not even trigger.
Nexus Staff: If you kill a hero with this then for each enemy unit within 9" you do d3 Mortal wounds on a 4+. Not worth it as it doesn't do enough for the amount of effort you have to put in to get this to work properly. Interestingly, it is the only one of these weapon buffs that doesn't specify melee weapons, though the only ones who can take advantage of that fact are the Tzaangor Shaman and the Magister.
Timeslip pendant: Once per combat phase the hero can pile in and attack at the end of this phase. Thaumaturge or a Lord on Manticore can abuse this.
Daemonheart: Once per ANY hero phase your hero can get +1 damage on his weapons but at the end of the round roll a dice, on a 1 the hero suffers a mortal wound. Again, Thaumaturge and manticore hero can abuse this and it might help the Curseling out a bit, almost doubling his damage output for a turn.
Paradoxical shield:+2 to save but you reroll successful saves. Really trolly upgrade, Can easily give one of your heros a 2+ but you have to reroll all your succesful saves. This is a hard one to judge as it can easily go wrong or you can roll like a god and laugh at your opponent as you reroll your 6 into a 6.(just as planned.) Generally try to put it on something that rerolls 1s on Saves. ~~You can only reroll each dice once, so those natural 1s do not have to be rerolled if they succeed after the reroll.~~ all rerolls occur BEFORE applying modifiers, so it looks like the shield requires you to reroll only if the unmodified die would succeed. Gives you a good place to spend your 3s and 4s from the destiny pool.

Daemonic Weapons

Any TZEENTCH DAEMON HERO can be given one of the following weapons (mount's weapons are not upgraded).

Warpfire Blade: 6s to wound deal an extra mortal wound in addition to its normal wounds on a melee weapon of the Hero's choosing. Pretty standard upgrade but why are your Daemon Heroes in close combat?
Sentient Weapons: Your opponent cannot benefit to modifiers on their save rolls. SCREW YOU CASTELLANT and/or mystic shield. Wait, it doesn't say that it upgrades melee weapons only... That Rod of Sorcery is much deadlier now.
Blade of Fate: A melee weapon gets rerolls of 1s to hit and wound as long as you have atleast 1 destinydace in your pool of destiny. If you still have 9 then you reroll all to wound and to hit. Unless you plan to not use any fate dice or manage them very carefully there are better choices out there... and did I ask? WHY IS YOUR HERO IN CLOSE COMBAT?
Souleater: A weapon gets +1 attack whenever it slays a hero... To get a good benefit from this your hero will have to run after most heroes your opponent controls like a dog chasing a car... not worth it... and do I even have to mention it... You don't want your heroes in close combat...
Phantasmal Weapons: This is actually a nice melee upgrade for your heroes, especially your lord of change. +1 to rend on all weapons is mighty strong, especially on your lord of change. This and the sentient weapons are the only melee upgrades you should be looking at for your deamons as they affect all your hero attacks, something the LoC can abuse. Unfortunately, Discs' Teeth and Horns are not boosted by this.
Pyrofyre Stave: Though it gives an alright bonus of +1 to wound on ranged attacks... most heroes having only 2 shooting attacks. Lord of change can use this if you roll well on your 2d6 attacks, otherwise i'd say just pass... (Why are you not a hero exalted flamer?*sob*)

Alternate Opinion: All these melee relics do actually have a decent user: A Daemon Prince. Give a Daemon Prince the Blade of Fate or the Phantasmal Weapons and watch him rip enemies to shreds.

Daemonic Powers

Any TZEENTCH DAEMON HERO can be given one of the following Daemonic Powers (nothing says that the mount' weapons can't be upgraded)

Lord of Flux: In your Hero Phase any enemy unit with 3" of your Hero take a mortal wound on a 4+. There are much better options out there than this measly thing. It is a 50% chance to do one mortal wound on units that are in combat range of your Hero... keeping in mind that because this activates in your Hero Phase your hero must survive through a full turn of combat for it to even activate.
Aura of Mutability: All your Tzeentch Daemon units within 3" of the Hero get rerolls of 1 to wound. This works for shooting so put your Hero near big Horror units or Flamer units to allow them to wound more. Keep in mind that these work on the Tzaangor Skyfires and Enlightened as well, since thanks to their Discs, they count as Daemons, too.
Cursed Ichor: Whenever your Hero suffers a wound, on a 2+ a random enemy model within 1" of them takes a mortal wound too. Good for a suicide bomb hero to run at an enemy hero you want dead and blow both of em up. Thanks to the awkward wording, this can lead to a rule problem: It randomly targets models, not units, so it could lead to more than one model in a unit being wounded despite all other rules going to great pains to avoid just that.
Wellspring of Arcane Might: Tzeentch Daemons within 9" of the Hero reroll 1s to cast. Keep in mind that Horrors and Gaunt Summoners are Tzeentch Daemons, too. Also helps to make sure a Lord of Change pretty much never fails a casting roll.
Aspect of Tzeentch: Whilst this Hero is on the field, any time you use a Destiny Dice for anything while he is on the field, you roll a D6, on a 6 you get a new one right back. Don't bet on this working more than twice per game, but those two times are already damn good.
Mark of the Conjurer: +1 to summoning spells for the chosen Hero. Since using summoning to dump an Exalted Flamer right in front of your opponent and set his ass on fire is a viable strategy, this one here has some use as it makes those casting rolls easier. Probably still better to stick to Wellspring of Arcane Might, though.

Lore of Fate

Every ARCANITE and MORTAL WIZARD in an army with a TZEENTCH allegiance and has chosen to take the TZEENTCH allegiance abilities can choose one of the following Spells (Alternatively, you can pick or roll one spell of Fate for all MORTAL and ARCANITE WIZARDS per army) :

Bolt of Tzeentch: Pretty high casting value of 8, but D6 Mortal Wounds at 18" are nothing to sneeze at. Just make sure your caster has some way of making the casting easier on himself, though. Arcane Sacrifice, Souldraught, the Tzaangor Shaman's energy drink, anything.
Arcane Suggestion: Theoretically a wonderful debuff for casting value of 7, but too random to be of much use. You either deal D3 Mortal Wounds, OR drop their Hit and Wound rolls OR drop their saves by 1. Awkward if you were trying to neuter the enemy but made them more fragile instead or you deal 1 mortal wound to an horde unit instead of debuffing it. Ideally, this could be used to weaken enemy Heroes and Monsters, but unfortunately this can't be cast on them.
Glimpse the Future: Considering how bloody useful Destiny Dice are, it should come as no surprise that the spell that gives you more has a high casting value of 7 and, even without the First Rule of One, is restricted to one per turn. Still worth it, especially on something that has multiple casting attempt, like a Magister in an Arcanite Cabal.
Shield of Fate: Odd. This cheap one (casting value 5) grants you rerolls on your saves that get worse the fewer Destiny Dice you have. Do you sincerely want something that hinges on a precious resource not being expended? Because frankly, if you're not going to work with this spell, you might as well cast Mystic Shield and save yourself a whole lot of trouble.
Infusion Arcanum: The Curseling and the Ogroid looove this baby. Pathetically low casting value of 5? Check. Increases both Hit and Wound rolls of the caster by one? Check. Take a powerful melee Hero and turn him into a terrifying melee Hero. For true dickishness, give it to Archaon. Yes, Ol' Topknot is both MORTAL and TZEENTCH and so is entitled to this spell if he's put in a Tzeentch army.
Treacherous Bond: Exactly what the Gaunt Summoner wants. The casting value is 6. This one is basically a "Look Out, Sir" of 2+ for the caster. The unit receiving the hits can stand up to 18" away when the spell is cast. So now you can toss your Gaunt Summoner into range for his scary spell and not worry about repercussions. Pick a unit of Pink Horrors with this spell. Let them tank hits and fill up nearby Blue Horror units with their deaths, then, in the Battleshock Phase, Destiny Dice a 1 into their Battleshock and get D6 Horrors right back via their banner.

Lore of Change

Every DAEMON WIZARD in an army with a TZEENTCH allegiance and has chosen to take the TZEENTCH allegiance abilities can choose one of the following Spells:

Bolt of Change: Pretty high casting value of 8, but D6 Mortal Wounds are nothing to sneeze at. Best on a Lord of Change with his amazing casting roll modification rule.
Treason of Tzeentch: Casting on 5+, Treason of Tzeentch lets you pick one model out of an enemy unit and attack the rest of the unit with that model. This should go without saying, but using it on 40 strong blobs is worthless and using it on single models is explicitly not allowed. No, pick those big models, like Ironguts, Kurnoth Hunters, Crypt Horrors, that sort of stuff. Let their unit champions beat the other two guys up.
Arcane Transformation: The casting values is 7. This one is potentially neat, but there are a lot of factors holding it back. You get to buff a friendly Hero, yay! You only get to target each Hero with this once. There are three stats you can pick between, yay! Two of them are worthless. Seriously, one extra inch of Move isn't going to win the game and Bravery is nearly worthless on a lone Hero, so the only useful one is to add one attack to a weapon profile of your choice. Interestingly, it doesn't specify "melee" weapons, so you could totally use this to double a Magisters shooting attacks. Otherwise, go for broke and give an Ogroid a second swing with his scary horns.
Unchecked Mutation: Pass. Pass so hard you forget there even is another spell here. Casting value 7, D3 Mortal Wounds, with a cascading effect that deals additional Mortal Wounds for every 5+ you roll on the following dice roll. 5+ means you're unlikely to get even one extra Mortal Wound, never mind a bunch and all for a casting value that's insultingly high for such an awful spell.
Fold Reality: Mixed Bag: The spell on 7+. Roll a D6, on 2+, you add that many models to a friendly TZEENTCH DAEMON unit. On a 1, however, the whole unit goes poof. The logical choice is to only ever use this on units that are near death already, like a lone Pink Horror trying to get some new buddies. The question is, do you want to leave a whole unit's fate to a single dice roll? And no, don't think you can cheese this via Destiny Dice. Masters of Destiny tells you which rolls you are allowed to change and rolls made by specific spells that you really really wish you could set isn't among them.
- In fact, you only have 1/6 chance of messing up with this spell, while the other five times you resurrect an average 3 guys, so it's pretty good. Just use it on units with low numbers, and that you can comfortably lose, and you're set. Or just take Kairos and a unit of 6 Tzaangor Skyfires, to have an unit that will probably never die; changing that 1 on a 6 one time per battle should ensure you never lose the unit. If you're in a really big battle, instead take a unit of 3 Burning Chariots, but keep in mind your opponent will refuse to play with you ever again after this. And I can't blame him.
Tzeentch's Firestorm: If Lady Luck and Admiral Awesome are on your side, this is a damn game winner. If not, you'll waste casting attempts on it. Casting value 9(!) so you need a Lord of Change or Kairos just to reliably cast it. Roll 9 D6, each 6 generates D3 Mortal Wounds. On average, that's 3 Mortal Wounds. Woo. If, however, you roll well, you could go all the way to unit killer with this. Combine this with Infernal Gateway and your Lord of Change can unleash some serious fireworks.

A question: What if a Hero is both Daemon and Mortal/Arcanite? Can he know spells from both Lores? the heroes that fit on that category are the Tzaangor Shamans, Gaunt Summoners and Archaon himself, the rules for both lores is "each wizard in a Tzeentch army knows and additional spell chosen from the Lores", so until FAQ'd, technically he can know one (or two if he is an Arch-Sorcerer) of both.

Warscrolls

Leaders

Named Leaders

Kairos Fateweaver: Disappointing. Kairos has a pretty decent melee profile and decent survivability, just like all Lords of Change. He also shares their rule for better casting rolls, but gets a much less useful unique spell to cast with it. There are only two things going for him: Once per game, you can change one D6 to a result of your choice, except it doesn't work on the roll for turn order, which makes it all but worthless, and the other is that Kairos knows the spells of all friendly Wizards within 18". Woo. So he's less versatile, less killy and gives less support than a normal Lord of Change, costs more and can't take Artefacts and Command Traits. Impressive. Not. Still useful for that single, guaranteed dice roll. Ensure an opponent fails a critical save. Insurance for Fold Reality not killing everything.

The Changeling: A fun little hero unit. Can deploy on you opponent's side of the board and can't be targeted by anything until he is revealed by another hero coming within 3" of him or you personally using an ability. Until then he can half the movement on a single unit within 9" every turn. Good on certain occasions like when your enemy brings a few fast units to keep you from moving up the board or getting close to artillery. Bring for fun not for game breaking madness. Also interesting is that he can use the spells of all Wizards around him. Against Ironjawz, you could totally have the Changeling cast Foot of Gork, use Destiny Dice to pass the casting roll and then stomp an opponent's unit into the dirt. If this kills that big 10 man Brute unit, the Changeling has already earned his points back and then some. Also a fun Assassin given its ability to copy the profile and abilities of a particular weapon in an opponent's warscroll. You can use it as a suicide unit against say... Alarielle and copy the beetle's attacks, using destiny dice to pass to hit and wound rolls and watch as you deal 25 damage with a 140 pt. unit. At the very least, it'll cripple a super-killy monster. A personal favourite trick is is you're up against Archon the Everchosen, charge the changeling into combat with him and watch your opponents face drop as you chose to use his own weapon against him. Chose the Changeling to hit first, and use your destiny dice, hopefully you've rolled at least one six. Attacka nd auto hit with a destiny dice then chose the to wound roll to be an automatic 6 to wound meaning that Archon's own sword removes him from the table with no saves at all allowed. Brutal.

The Blue Scribes: Now a very powerful caster. They can automatically cast anything on 2+ with 1D6 and to unbind their attempt, you need a 9 or more. This allows you to cast any overpowered summoning spell with impunity. Don't want to be a jerk? No problem, you can also just use their own spell, which makes it easier for other Tzeentch Wizards to cast.

Generic Leaders

Gaunt Summoner: A very mediocre Wizard statline but attached to some awesome magic. The Gaunt Summoner has one of the best horde-roasting spells in the game and can cast twice per turn, making him a wonderful addition to any army. The fact that he has the Daemon keyword only makes him better. The only real problem is the lack of mobility and survivability. To use his awesome spell to best effect, you want him close to the enemy, but 5 Wounds and a 6+ save aren't too helpful in letting him survive that.
- The Balewind Vortex can help mitigate the need to be close. If an entire horde of enemies wishes to approach, they do not want to be within the 36" bubble of death that his spell becomes while atop the vortex.

Curseling, Eye of Tzeentch: Wow. Vilitch, who used to be overcosted and underpowered, may now be one of the best Chaos casters, albeit he is now a generic hero. He can cast and dispel two spells a turn. Any spell he unbinds, he can immediately cast himself with nobody being allowed to unbind his attempt. He also has the Glean Magic spell with which he can steal unique spells off enemy Wizards (it has 24" range, and the target can't try to unbind this 3+ spell if you're more than 18" away from him, niiice). And in combat, he's awesome, too. He has three weapons, one a Sorcerer staff with bad To Wound and worse To Hit rolls but D3 damage if it connects and then two weapons which are basically Crom's weapons except one of them has extra Rend. Yeah. He hits hard, he can cast twice and he can cast everything he unbinds. If you play him, keep a bunch of Familiars around to grant him that all-important +1 to cast and unbind. His main problem is the First Rule of One. He only has three spells, two of them the generic spells and the third one that only works if the enemy is packing Wizards, and even then the result may not help him, so unless you give him a good lore spell, he will be dead weight on the spells you can cast.

Fatemaster: While his attacks aren't as strong as that of other Lords, you don't take him for his power. You take him because he can add +2 to his saves in melee unless his opponent is flying, too. Yes, he gets a 2+ save so long as you don't send him at a Dragon or something. Yes, Mystic Shield stacks on that. He also has a weird Command Ability that is potentially awesome and potentially awful. You roll a D6 in your Hero Phase. Until your next Hero Phase, you can reroll all dice rolls that show this result. Awesome if you roll a 1 or 2 for this, awful if you roll a 6.

Magister: This guy is way, way worse than the normal Sorcerer in melee, but can instead shoot a pretty decent shot out 18". He can cast additional spells if your casting roll was a double, even if it failed. His unique spell is basically Arcane Bolt that has a chance of spawning a Chaos Sp-- that. You could potentially use two 3s from your Destiny Dice pool to successfully cast a Mystic Shield with him, then cast his unique spell in addition because technically your last casting "roll" was a double.

Tzaangor Shaman: The mage you want in a Tzaangor-heavy army. Thanks to his Disc, he's not all that bad in melee, but that is still only a last resort, as he's too important to risk. The fun part is that he is a 6 Wound mage with high movement and a decent spell: Enemy unit takes D3 Mortal Wounds, afterwards you can add a Tzaangor to a nearby unit for every model the spell killed. Roast some Saurus Guard and fill up your Beastmen all in the same breath. The Shaman also carries a nice energy drink with him that, once per game, lets him cast twice and reroll casting rolls while he's at it. Use to best effect in an Arcanite Cabal Battalion for 3 rerollable spells. Also, since the disc he rides gives hime the daemon keyword, he qualifies for and can pick from both daemonic and arcanite tables form the allegiance abilities.

Ogroid Thaumaturge: For all intents and purposes, the Ogroid Thaumaturge is a Tzeentch-marked Doombull. He has 8 Wounds without counting as a monster, a 5+ save and automatic regen of 1 Wound per friendly hero phase, so he's pretty tanky. He also moves 6", deals D3 Mortal Wounds for successfully charging and has three weapon profiles in melee, all of them good. His staff is just like any other mage staff, but hitting on 3+ and dealing two knocks, then his horns have one attack with great Hit and Wound rolls, great Rend and constant damage 3 and finally his hooves are exactly 2 Hammer-Liberators worth of knocks. And wait, that's not all. He is also a wizard, armed with one of the most bullshit unique spells in the game: Casting value 7, pretty high, but instantly deals D6 Mortal Wounds. And then you get to set up a unit of either Pink, Blue or Brimstone Horrors within 1" of whatever you shot (yes, right in melee distance, tying the unit down instantly). And yes, you CAN pick Pink Horrors and then immediately cast a spell with those because it's still your hero phase. But wait, that's still not all. He also turns red after suffering 5 or more Wounds, lowering his own casting rolls but gaining +1 To Hit, making him even more terrifying in melee. This guy is just amazing. Having him and a Tzeentch army and NOT playing him is akin to sacrilege. He's powerful, he's versatile and his model looks amazing.

Lord of Change: Casty, scary lord, now with 14 Wounds because he got a new model. Can choose between a bunch of weapon profiles in addition to his staff but the gatling rod will generally be your best bet because a Lord of Change in melee is a dead Lord of Change unless you're sending him war machine hunting.

Exalted Daemon of Tzeentch (Forge World): A Lord of Change pre-new model, now with a 3+ Save and 15 wounds. This also means it only has the staff to fight with, severely hampering its usefulness with the new freshness available. Also has a Casting Value of 9 as opposed to 10 for some reason.

Herald of Tzeentch: Has a pretty cool combination of tricks going for him. He has a unique spell with a casting value of 9, which is pretty fucking high. Also, once per game, he can cast with 3 dice instead of two, making 9 much more reachable. Also, if he casts with a value of 9 or more (no matter which spell) he can cast another one. Basically once per game you can cast twice unless you roll real bad. Keep in mind that casting with three dice, adding Chaos Familiars and a Lord of Change can mean that once per game you can summon anything including the way overpowered Soul Grinder.

Herald of Tzeentch on Disc: Oddly the disc is disturbingly powerful in melee. However, the Herald on it wants absolutely nothing to do with melee. Ultimately, the Herald on Disc is a confused beast, best left alone.

Herald of Tzeentch on Burning Chariot: When deciding how to build the model, do consider that this unit doesn't get the magical flames shooting attack that other heralds get, or the blue horrors close combat attacks that the exalted flamer gets. In other words, if you build this version, you can use the Blue Horrors to increase your Pink Horror units, the Exalted Flamer by himself and all the flame bits for nice conversions.

Troops

Battleline

Kairic Acolytes: Tzeentch-themed Marauders, just as Bloodreavers are Khorne-themed Marauders. Kairic Acolytes can (and must) mix and match weapons: The normal blade is the exact same as a Marauder with an axe, the glaive gets better Rend, the dual-wielder hits better and the shield gives the model a 6+ save-before-the-save against normal and mortal wounds. This is all okay, but not terribly impressive. What sets them apart is that each is also a magical dabbler and can shoot minor magic missiles with 5+/4+/-/1, which sounds bad. Then you notice that having a Tzeentch Wizard tagging along adds 1 to these shots' To Hit rolls. Then you notice that these shots are amazing as normal Marauders don't get stuff like this at all, so even a weak shot is better than no shot at all.
- Protip: Because you can mix weapons 40K-style, give some of them shields, and whatever weapons you want to the rest. Put the guys with weapons in the front, so they get to be more killy, then when it's time to allocate wounds, place them in the guys with shields (their rule says the models with shields are the ones who get the extra Save). That's teamwork for ya!

Tzaangors: Incredible. They are, at first glance, Chaos Warriors with a lower save. Then you look at their weapons. No matter what you equip them with, they will always have a 4+/5+/-/1 beak attack each. Then you can choose between two weapons, sword and board and glaive (only two on each five models). The shield gives you a nice save-after-the-save, the twin swords get you better hit rolls and the glaives only give you 1 attack instead of 2 but at damage 2 and Rend -1. They also have a nice rule where, for every 9 models in the unit, you get an additional attack, up to +3 maximum. Since this stacks nicely with the few strong attacks from the glaives, you want glaives if you want to go for raw damage output and shields to keep them safe, and they can have one mutant for each 5 models, who always have two blades and make 1 additional hit with them. The good thing? You can mix-and-match, so you can do both! They can also run and charge like normal Beastmen, thanks to their musician and can channel mortal wounds onto enemy units if the Tzaangors have Wizards chilling with them. Having an Arcanite Hero hanging with them also gets them better Wound rolls, so keep that Tzaangor Shaman nearby to buff and replenish.

Pink Horrors: One of the best infantry units in the game. Not only do they shoot pretty well and on a surprisingly high range, each unit also counts as a Wizard, so they can either shoot some Mortal Wounds at stuff their normal attacks can't get through, increase their save to 4+ or summon some more bullshit. Even more insane when using the new Lore of Change, in which case every unit of Horrors gets one of the Lore's spells to play around with. Horrors filling their own unit back up? Do it! Horrors buffing your Heroes? Do it! Horrors causing big stuff like Kurnoth Hunters or Ironguts to punch each other? Do it! The huge downside to Horrors of course is how they survive as they only have a 5+ save like most daemons. In open and narrative play one does not have to worry as they have the SPLIT rule, however in matched play this is next to useless as reinforcement points mean you do not get to bring in blue and brimstone horrors unless you've put the points aside. So say you were playing 2000 pts and wanted your 3 battleline to be Pinks that split and split again you'll find that you need to put aside 100 points for each units blues (1 pink turning into 2 blues) and then for each unit of blues you need to put aside 40. This plus your cost of taking the Pinks means that you are investing 280 points per unit of Pink Horrors. So taking 3 of them with this would mean having 840 of your points just in your battleline units.

Others

Tzaangor Enlightened: Elite Tzaangors. They have the "option" of putting them onto Discs, though frankly that option is somewhat insulting, as you will not ever not take it, but being able to play them on foot is good if you want three spare discs that you want to use with other Tzeentchian models, either from AoS or 40K, is nice. For the low price of being affected by anti-Daemon abilities, all your Enlightened gain 10" extra Move, an extra Wound and a massively scary melee profile on top of their own massively scary melee profile. They get better when an Tzaangor Shaman is nearby. Other than that, they have a beautiful psychological tool in the Guided by the Past ability, which grants them full rerolls To Hit and Wound if an enemy unit within 3" has already attacked this turn. This puts your opponent into an unpleasant situation: Either attack them first and give the survivors powerful rerolls or let them attack first and pray he'll still have models left once they're done.

Tzaangor Skyfires: Ranged Elite Tzaangors. These fellows are the unholy cross between a Tzaangor Enlightened, a Kurnoth Hunter and a Warplock Jezzail (guess who did what, I don't wanna imagine that scene). They have the obscene 16" Movement of the Enlightened, the 24" range of the Kurnoth Hunters and 6+ Hit rolls immediately deal Mortal Wounds. This is even stronger considering close proximity to an Tzaangor Shaman grants them +1 To Hit, and the leader already has an additional +1~~No, the leader simply hits on 3+, very different as that doesn't increase his chance of triggering the exploding 6s~~No, is still an effective, intrinsecal additional +1 for the leader' bow, and he still need a clean 6 to deal insta damage. Expect to see at least one unit of 6 in every competitive list.

Blue Horrors: Some saint at GW decided to bless us with a warscroll for Blue Horrors in the Silver Tower game, apparently having forgotten the utter lunacy that once ensued because of them. Basically, a Blue Horror is a Pink Horror, but worse in melee, slightly lower-ranged shots and no magic. But that's really not the important part. The important part is that, so long as you have the warscroll and the models, you can set up 2 Blue Horrors whenever a Pink Horror is killed, thus adding two more wounds your opponent has to chew through before he can get at the actually important stuff behind them. It also helps that Blue Horrors are cheap as chips. With 50 points for 10 models that can shoot, you can place a veritable flood of gribblies in front of your opponent and roast him from a semi-safe distance. Shame they aren't Battleline.

Brimstone Horrors: And because Pink Horrors splitting into two blue wasn't insane enough, killing a Blue Horror creates a (paired) Brimstone Horror, which are basically teeny-tiny swarms that have only 1 Wound ~~despite clearly being 2 distinct lifeforms~~ is not like you could expect from GW to some day release an ant colony and give it +10000 wounds tho. These are even weaker than the Blue Horrors but provide yet another bunch of Wounds your opponent has to chew through. If we ignore the scarcity of the Brimstone Horror models, under perfect conditions, it would take 50 Wounds of damage for your opponent to chew through 10 Pink Horrors.

Exalted Flamer: Has twice the wounds and twice the attacks of a normal flamer, and that's basically it. I'd just take two normal flamers and put this chap on the chariot for the extra stuff that can do. But if you plucked a Chariot apart or built it with the Herald on top, fielding this guy really doesn't hurt, as absolutely nothing in the game enjoys being pelted with 6 damage D3 shots from 18" away.

Flamers: Pretty bloody great. They die very easily, so keep them in cover, but their ranged flame attack is possibly the best thing Tzeentch daemons can bring you, massed shots (10 from 3 of them) causing D3 wounds on anything that gets through is awesome. Bonus flaming is nice too - remember "healing" in AoS only affects models that are still alive, if flaming one-wound stuff it doesn't mean models get up again if you roll a one afterward. In summary using a wound-based comp system (or no comp system) you'd be a fool not to bring at least three of these. Also, remember the awful Locus of Transmogrification? It's been buffed to hell and back and given to these guys. If they lose models while close to a Herald of Tzeentch/Blue Scribes/The Changeling, they have a chance of the Flamer simply splitting into two new and fully healed Flamers. And all the ones that don't split, you simply summon back to the table with your buttload of casting attempts. Lastly, they have 9" Move and can fly (by jumping, according to their warscroll!), so you can use them as ultra-powered horse archers, leaping here and there while puking multi-colored death from a safe distance.

Screamer: A bit pillow-fisted overall. Three of them won't do much, they want to be in bigger units to achieve anything (even lone wizards might not die quickly to them otherwise) and you're unlikely to put plenty of wounds on units, though monsters really don't enjoy the damage upgrade to D3. Do remember you can do the slashing fins attack if you "retreat" from a combat they're not going to win by flying over the unit they were fighting.

Exalted Flamer on Burning Chariot: Ridiculous, utterly ridiculous. Has the potential of inflicting 46 Wounds per round, if you do it just right. It can damage units it flies over, has the same powerful missile weapon as the standard Exalted Flamer and a bunch of melee attacks, including the two Screamers, who make 6 attacks, each of which deals D3 damage whilst targetting a Monster. None of these have Rend, but whatever. Take a couple and dominate the game. However, these things are pretty fragile, not that this means anything when you have a goddamn 14" Flying Move stat.

Behemoths

Mutalith Vortex Beast of Tzeentch: YES, that's right, as of April 8th 2017, the Mutalith Vortex Beast and Slaughterbrute received and update with the keywords TZEENTCH and KHORNE respectivably, allowing them to keep the Allegiance Abilities from the new Blades of Khorne and Disciples of Tzeentch Battletomes, which is good, and not stupidly broken.

The Mutalith Vortex Beast is a big, bad monster with good survivality, healing 1D3 wounds on each of your hero phases, having a +4 save, and has the potential to dish out A LOT of attacks, but his weapons profiles have modest hit and wound stats, so don't expect it to RIP AND TEAR the enemy (oh no, that's what Slaughterbeast do).

You don't take it because it is killy and stompy, like the aforementioned Slaughterbeast; ho, oh no, you take it will give your enemy's forces a really bad time with debuffs and mortal wounds. Aura of Mutation is one of the few random special rules that can never turn on you, since it can apply one of 3 PERMANENT DEBUFFS (yes, PERMANENT) or inflicts heavy damage to a unit at 15" from it (yes, a unit, not neccesarily an enemy unit, given the curious wording), according to the number you got after rolling a single dice on your hero phase:

Hideous Disfigurement: -1 Bravery FOR THE REST OF THE BATTLE. Good against poor Bravery units, like horde armies usually are.
Trollbrains: FOR THE REST OF THE BATTLE the controlling player must roll a dice at the start of each of their hero phases. On the roll of a 1, the target unit can’t be selected to cast spells, move or attack until their next hero phase. A kind of curse, but this can be FATAL, since the entire unit will not be able to do a single thing on the rest of the turn. Choppy units, shooty units, fast units, wizards with powerful spells. Damn, could you imagine what could happen to a whole Sisters of the Thorn unit, who happens to have four of those attributes, on a roll of 1? if your Mutalith Beast charges them you will watch a nasty hentai movie.
Gift of Mutations: -1 Move for THE REST OF THE BATTLE. This is just wrong, this gives a bad time to almost everyone. Crippling movements, retreats, charges, escape routes, and punishing harder monsters with damage tables (imagine those poor, slugass like Plague Furnaces or Screaming Bells that got a shitton of damage, they will not be able to move at all).
Tide of Transmogrification: D3 mortal wounds. Good, free damage.
Maelstrom of Change: D6 mortal wounds. Gooder, more free damage.
Spawnchange: D6 mortal wounds, plus each slain model in the unit will become a Chaos SpwALLAHUACKBARARGHH. Good already for the mortal wounds, and can be better on open or narrative games. Matched games will not abuse a lot of the extra... units created... but if you have 60 points free to spare, go ahead and place one.

Remember that you *can* inflict mortal wounds to your own units, but why would you that? at the moment there are not a single battalion that could possibly benefit of this...

(Note: as you can see, those first three debuffs are never refered to not be able to be used multiple times on a same unit. Until FAQ'd and clarified, you could expect to reduce bravery and movement twice or more on a single battle. Don't abuse from this, unless yoy want to be that guy).

Now, since the Mutalith Vortex Beast got that shiny new TZEENTCH keyword, it benefits from Masters of Destiny, for those times when you really have to make sure to pass the savings, but it is a Monster, and dosen't have any further synergy with either from Mortal or Daemon units. Don't be an idiot wasting your Destiny Dices to make it pass every hit or wound roll, and don't try to be a smartass trying to use them with Aura of Mutation, you can't, since the rules for the battle trait specifically says that they DO NOT affect abilities.

Discontinued

Normal Battalions

Daemon Cohort of Tzeentch

Could be fairly nasty if you play fair. If not, it's utter rape. Extra spells means you could reliably be casting Arcane Bolt and Mystic Shield with every unit (including your Horrors) every turn. Having most of your army with +1 saves while throwing multiple sets of D3 mortal wounds across the field, plus normal shooting, could be nasty. You'll probably want to borrow some speedbumps from somewhere to keep enemy units at arm's length. Lord of Change probably best for his command ability giving a bonus to cast. And all of this is not taking into account the fact that you could use summoning magic with all your casting attempts.

Warpflame Host

An Exalted Flamer has 3+ units of Exalted Flamers, Flamers or Burning Chariots tagging along. Together, they have a small chance of dealing additional Mortal Wounds in the Hero Phase, similar to Nurgle's Rot. Not really that good, as all the models are already plenty killy, don't want enemies anywhere near that close to them and the chance of triggering damage at all is fairly low. You really only take this because it's a requirement for The Eternal Conflagration.

Multitudinous Host

A Herald of Tzeentch takes 8+ units of Horrors (Pink, Blue or Brimstone in any combination) along. In every friendly Hero Phase, you get to add D6 models to each Pink and Blue unit and D3 to each Brimstone unit. And no, the Herald's position or surviving is not a condition for this. Hoo boy, you could end up with a hell of a lot of Horrors with this. In Matched, it's neutered a bit, but still powerful. It only means that you need big units to take advantage of it.

Aether-Eater Host

Say that five times in a row fast. A Herald on Chariot takes 3+ units of Heralds on Disc, Heralds on Chariot, Screamers or the Blue Scribes along. Whenever one of them unbinds a spell, that model heals D3 Wounds and as long as there are 9+ units in the Battalion, your Screamers can unbind one spell a turn. Let's be honest here, unless you're running some gimmick list or are trying to make your 40k Screamerstar work in AoS, this Battalion will never have 9+ units, so basically you only get healing whenever one of your Wizards unbinds, which is still pretty cool. Can help a Chariot Herald survive for longer.

Changehost

A Lord of Change takes 8+ units between every Tzeentch Daemon unit that is not another Lord of Change. In each hero phase two units within 27" from the Lord of Change can teleport in each other's place. You can do it twice if the formation includes 9+ units, and three times if there are 18+ units. This can be fairly nasty, but you need to use it correctly. For example, plonk a unit of hard-to-kill Horrors in front of the unit that was just busy cutting your Flamers apart. Or bait a monster into attacking your Horrors, then switch them out for Screamers with their bonus against monsters. There are lots of possibilities, but you need to think these situations out beforehand, as it's a huge-ass Battalion and it's only worth its cost of entry if you know how to make use of it.

Overseer's Fate-Twisters

Oh. Oh my. If this weren't so insanely big and expensive, it'd be absolutely mandatory. As it is, it won't see much use. You take a Lord of Change and then 8+ choices from the list of Exalted Flamers, Burning Chariots or HORROR HERO. Combined with the Battalion cost, you're looking at 1340 points bare minimum, though the benefits speak for themselves: First, every Hero Phase, you get another Destiny Die. Second, you get to reroll one Destiny Die every Hero Phase. Third, and this is the Cheddar, so long as there are 9+ models in the Battalion, you can wait until after you've made a roll before you decide to sub Destiny Dice in. This not only lowers your consumption of Destiny Dice drastically, it's also a wonderful psychological tool that lets the opponent know you have almost complete control over your dice rolls and puts you at ease as you have almost complete control over your dice rolls.

Omniscient Oracles

Really, really not worth the price of admission. Take Kairos and three more vanilla Lords of Change. In exchange, you get to reroll all 1s on Hit, Wound, Save, Run and Charge rolls. Now, to be honest, this is a massive fucking load of bullshit. It's Daemonic Power on steroids for four powerful Behemoths. Never mind that they can still take unique spells, gear and magical gear on top of this. On the other hand, even in a 2500 point game, you just spent well over half your points on four models. Never mind all the cash you'd have to throw down for this...

Arcanite Cabal

3-9 Magisters, Fatemasters or Tzaangor Shamans, in any combination. If you use Destiny Dice for models of this Battalion, you have a 50% chance of recycling the Dice and if they stick close to each other, they can cast an additional spell in each friendly Hero Phase. What is interesting about this is that the Fatemaster isn't a Wizard, but the wording reads as though he gets a spell as well... Either way, the Magisters and the Shamans really love both of these abilities. The Magister gets more chances of rolling doubles and casting EVEN more and the Tzaangor Shaman has a wonderful opportunity to make the most out of his one-use ability.

Alter-Kin Coven

A unit of Kairic Acolytes, a unit of Tzaangors and a unit of Tzaangor Skyfires get an aura of mutation that works basically like Nurgle's Rot but every model killed lets you add a Tzaangor to a nearby unit. Not too shabby. An inexpensive Battalion with a decent bonus and no dead weight at all. Not bad, but not great. Let's be honest here, you take this because you want to turn it into a Cult of the Transient Form later. No shame in admitting that.

Witchfyre Coven

Two units of Kairic Acolytes and a unit of Tzaangor Enlightened. This nets you the ability to shoot your Sorcerous Bolts in the Hero Phase as well as in the Shooting Phase. This has a lot of uses, most of it boiling down to "more dakka". This is one of the requirements for a Pyrofane Cult and boy does that ever enhance those Acolytes further.

Skyshoal Coven

A unit of Tzaangor Enlightened that have to take Discs of Tzeentch and two units of Tzaangor Skyfires get to move 9" in every friendly Hero Phase and have a tiny chance of inflicting Mortal Wounds on stuff they flew over, just like Screamers. This is a bit unnecessary, as these models are all excessively fast already and, more importantly, the Skyfires will never want to be in a situation where they want to do this fly-by attack.

Alternate Opinion: This is absolutely amazing for skyfires. If your enemy gets close, you just zoom away with your hero phase move, keep going in your movement phase, and keep your target at just inside max range. Never will an enemy get close enough to charge.

Another Alternate opinion this is amazing for all models because you can get easy turn 1 alpha strike charges

Tzaangor Coven

A unit of Tzaangors, a unit of Tzaangor Enlightened and a unit of Tzaangor Skyfires. All their beaks Wound on 4+, which is pretty nice. In addition, the plain Tzaangors get bonuses if the others stick close. If at least one sticks close, the vanilla ones get to pile in and attack in your Hero Phases. If both are close, they also get yet another +1 To Wound. If you like Tzaangors, and let's be honest, of course you do, why else would you play Arcanites, then this one is damn good. Having a unit of Tzaangors buffed by all this and with a Tzaangor Shaman nearby is pretty horrifying.

Super Battalions

The Eternal Conflagration

This is one of those big Battalions we've been seeing since the Sylvaneth. To start out, you need a Lord of Change and a Warpflame Host (the one with all the Flamers), but with at least 6 units in it. In exchange, the opponent takes a To Hit penalty against all your Flamers and Exalted Flamers, which is excellent as it keeps your glass cannons safe that much longer, and your Lord of Change gets to use Flamers as spell conduits in much the same way that Slann can use Skink Heroes. The main problem with this is a) you look like a dick if you play nothing but Flamers and some token Battleline and b) you will have a 2000 point army of less than 50 models.

The Host Duplicitous

The other big Battalion for the Daemons. This one needs a Lord of Change and a Changehost to start out with, with the added requirement of the Changehost having at least 3 HORROR HEROES. And yes, that means you need two Lords of Change to start this pain train. For this, all dice on casting rolls that show a 1 are counted as 2s. This makes your casters that much better, especially the two Lords of Change, but the Heralds are going to like it, too. The more fun part is the Flickering Mirage spell the Battalion gives your casters. You pick an enemy unit. Until your next Hero Phase, all their successfull Hit Rolls fail and all their failed Hit Rolls succeed. WAT. Depending on how this interacts with exploding 6s and the like, this is the best debuff in the damn game. And this cements the Battalion's role: You take The Host Duplicitous to fuck with people. Between the Changehost's base rules and that bullshit spell, matches against this Battalion will leave your opponent with less hair than before, some of it turned grey. No unit ever stays where it's supposed to, every turn your whole army switches around and his deathstar with the rerollable 2+ Hit rolls can't hit for shit anymore.

Arcanite Cult

Like with the Sylvaneth, this super Battalion is the blueprint. It has the most rigid structure and the fewest bonuses. Avoid at all cost. The other two Arcanite super Battalions are literally this one, but tricked out and with more choice. Either way, to start, you need an Arcanite Cabal, then 3-9 of the other Arcanite Battalions and then you can take up to one Curseling, Ogroid and Gaunt Summoner each. For that, you get +1 Bravery on everything (don't scoff, your Tzaangors and Acolytes have horrible Bravery) and you get to choose three of your Destiny Dice rather than rolling them at the start of the game.

Cult of the Transient Form

You need at least an Arcanite Cabal and an Alter-Kin Coven to start out with, with the Alter-Kin Coven's Tzaangor unit being 20+ strong. For that you get a chance of Kairic Acolytes turning into Tzaangors when they die (great as those Tzaangors can reinforce other Tzaangor units) and Heroes have a chance of turning into Chaos Sp--- those (not so great as you have to reserve points for that, then again, if you're playing a Magister, you've likely reserved points for a Spa-- thingie or two anyway). If you add at least two more Coven Battalions (see above), you also get the generic Arcanite Cult rules on top.

The Pyrofane Cult

To start this, you need an Arcanite Cabal and a Witchfyre Coven in which both Kairic Acolyte squads are 20+ strong. For this, first your Wizards get a new spell that is basically an Arcane Bolt that has a decent chance of jumping to other nearby enemy units. Decent, but not amazing. Also, for every unit from the Battalion that shot at an enemy unit, every subsequent unit of Kairic Acolytes gets +1 To Wound when shooting at the same unit. So basically, you let a Magister shoot an enemy unit with his staff and then have a unit of Kairic Acolytes shoot at the same unit, then those Wound on 3+. If, after that, you shoot the same unit with yet another unit of Kairic Acolytes, they Wound on 2+. The really fun part is that, thanks to the wording, you also get this bonus when using the Witchfyre Coven's rule to shoot in the Hero Phase.

Army Building

1000 pt.

Here the core tax is 1 Leader and 2 Battleline units.

Your basic choices here are to focus either on Daemons, on Tzaangor, on Mortals or on a combination of those. A Lord of Change is probably overkill and an Ogroid and another support mage working in tandem will likely serve you better. Taking Kairic Acolytes over Pink Horrors is seldom a good idea unless you have a specific Battalion in mind. Also, do not be too proud to look into the Slaves to Darkness. The Chaos Sorcerer Lord provides wonderful support and Chaos Warriors provide a hardy Battleline choice. Avoid Chosen and Chaos Knights, though, as your Tzaangor Enlightened leave them in the dust in terms of mobility and damage output. Also, hands off those Flamers. A single unit is already 20% of your points budget. They are massively scary, but once the opponent has a target lock on their asses, you'll lose a huge part of your army.

Another possibility is to buy a Start Collecting: Slaves to Darkness box. Since all those Mortals can elect to take the TZEENTCH keyword, they are entirely compatible with your allegiance, though not with your Battalions. The Chaos Warriors give you some more survivable Battleline, the Knights and the Chariot give you a nice balance of beefy and fast and the Chaos Sorcerer Lord is just flat-out better than your Magister.

Yet another option is to pick one of the Battalions from the Battletome and build your army around it. A Changehost can complement just about any Tzeentch Daemons and provides a fun bonus for example. Ideally, for this you want to pick a Battalion you can expand upon when taking the hurdle to 2000 points.

An example list could be

Tzaangor Shaman (General)
Ogroid Thaumaturge
10 Tzaangors (Battleline)
10 Tzaangors (Battleline)
3 Tzaangor Enlightened
3 Tzaangor Skyfires
Battalion: Tzaangor Coven

Very Tzaangor-centric. The first thing you should do when upping it to 2000 points is get two more Battleline units, so you can combine the 20 Tzaangors into one unit to make them all profit from the Battalion rules.

2000 pt.

Here the core tax is 1 Leader and 3 Battleline units.

2500 pt.

Here the core tax is 1 Leader and 4 Battleline units.

Tactics

Magic

Allied Armies

Slaves to Darkness: Well, they do need to be mentioned. Chaos Warriors are the toughest Battleline you can get, which makes them a wonderful bodyguard unit for your squishy Wizards. Their shields also make them a prime target for your Look Out, Sir-spell, in that they can simply tank a third of the damage they receive from it via their shields. Marauder Horsemen and Chaos Knights also provide you with a vanguard that can keep up with your Flamers. And, finally, the Chaos Sorcerer Lord provides you with an amazing support spell. Also, frankly, if you still have a Tzeentch-marked Slaves to Darkness army around from when the Arcanites didn't exist yet, here can be their place to shine.

Daemons of Chaos: Since you can mark all those generic Daemons, you can add some helpful stuff do your army. Furies may not be worth much, but a Soulgrinder is the sort of thing that makes opponents rethink their whole strategy. A Daemon Prince also makes a wonderful Hero for you, who can actually enjoy all those melee upgrades in the Daemonic Weapons list. And don't forget Galrauch, that's it a beast himself and has a powerful spell.

Everchosen: Because fuck you, I'm Cheeos incarnate. Archaon is Daemon, Mortal, Tzeentch, Monster, Hero, Wizard, Scientist, Philantropist and Playboy. He can benefit from any non-Arcanite Allegiance Abilities for a Tzeentch army, alongside his Varanguard if he marks them. Fatesworn Warband battalion says that its Allegiance is Everchosen, but a battalion can still be part of any allegiance that all its units have on their own warscrolls, so until FAQ'd, you can use bonuses for them as well.