Editing 40K Rules Blooper Reel (section)

==9th Edition==
*'''"Look out!" "No, you look out!"''' The rules for Look out Sir! Were changed with the advent of 9th edition, here's the important bit: ''Models cannot target a unit that contains any Character models with a Wounds characteristic of 9 or less with a ranged weapon while that unit is within 3" of any other friendly Vehicle or Monster unit.'' you can probably see the issue, if two monster/vehicle characters with 9 wounds or less are near each other and they're not the closest unit, you cannot shoot either of them, regardless of how far the rest of their army is in relation to them. Fortunately this was FAQ'd out.
*'''"My armour is contempt, my shield is cheese."''' Another rule change that had some unintended consequences from the beginning of 9th edition. Stormshields were changed from giving the model a flat 3++ Invuln save to giving them a 4++ Invuln and adding +1 to their armour save value. This was most likely done to make the new Blade Guard unit more appealing compared to Terminators as they only had a 3+ save rather than a 2+ save, but this accidentally meant that models with a natural 2+ save with Storm Shields (Terminators and Custodian Guard) got an un-modifiable 2+ armour save (a 2++ Invuln). This was because how modifiers and armour piercing works in 8th and 9th as an armour piercing weapon would lower the armour save '''ROLL''' by its AP value; the roll, not the armour save itself. Since you can't lower a roll below 1, and the model had a 1+ Armour save, it would always pass its save unless it rolled a natural one 1 since those always fail. This wasn't just pulled out of some WAACfags ass either, Rend in [[Warhammer: Age of Sigmar|AoS]] works the same way as AP in 8th and 9th and it was specified in an FAQ for AoS that if a unit got a 1+ armour save it ignored rend values and only rolls of natural 1 failed. To top it all off it was an armour save, so the tricks used to deal with Invuln saves like Death Hex and Null Zone didn't affect it so there was no way to get through apart from weight of fire and Mortal wounds. GW did pick up on this quite quickly however and FAQ'd Stormshields to add 1 to armour save rolls, not the armour save, ending the run of 2++ Terminators.
*'''"[[Blood Ravens|Oh this? I found it.]]"''': According to his new Legends profile, Malakim Phoros, the [[Lamenters]] Chapter Master, was given [[Lias Issodon]]'s specialised stealth armour for some reason. GW got round to updating his legends profile and it was taken away from him again. One can just imagine a very angry Lias sneaking into Malakim's room and stealing his armour back. Although, considering it's Lamenters we're talking about, it's more likely the suit ended up in Malakim's closet by complete accident, he wasn't aware of it at all, and was still blamed and chastised for the unintended theft.
*'''Minions of spelling errors''': In the Legends pdf, you can find the full rules for the Renegades and Heretics, aka the "human" army of Chaos. Like every army, they were given their own version of Objective Secured, but unfortunately the rule doesn't work because everyone in the army must have the keyword {{w40kKeyword|CHAOS AND RENEGADES}}. Literally nobody in the entire game has that keyword, and this particular army has the {{w40kKeyword|RENEGADES AND HERETICS}} keyword instead.
*'''Master of whatmancy?''': As of the 2020 Dark Angels index, Ezekiel has the Master of Interromancy ability giving +1 to cast Interromancy powers. The problem is that the same index stated that everything in Dark Angels codex was unusable, including the Interromancy discipline.
*'''Demoted back to Reclusiarch''': When Psychic Awakening: Faith and Fury, released during 8th [[Grimaldus]] was upgraded and made the Black Templars Master of Sanctity which gave him the <Master of Sanctity> keyword and access to special stratagems. With the 9th edition Black Templars index GW forgot they had promoted him and didn't give him the <Master of Sanctity> keyword again.
*'''Adeptus Mechanicus Party Pontoons''': As of the release of the 9th Ad Mech Codex, the Skorpius Dunerider's Transport rule reads: "This model has a transport capacity of 12 '''Infantry''' or '''Forge-World Infantry''' models." Due to the presence of the lone "'''Infantry'''" keyword, this means that '''ANY''' unit with said keyword is eligible to ride. On top of this, the Dunerider lacks the usual Terminator/Jump Pack penalty, so it is possible to load the transport with multiple units of Space Marine Centurions, Bullgryn, Kataphrons, etc.
*'''Master of War with Clipped Wings''': With the announcement of the 9E Eldar codex, a lot of people were reasonably excited when they saw that the new Autarch model was going to be far more customizable than the travesty 8E left us with, allowing not only new wargear but also new weapons that were all supposedly compatible with the old winged model. Even the codex cover proudly displayed a winged autarch firing a reaper cannon. Cue the codex dropping and the baffling statement that took away all of those custom options from the autarch if they chose to pick wings - They were stuck with the wings, mandiblasters, banshee blade and fusion pistol all as a package deal. A few weeks later GW themselves would realize how stupid this option was and released a free updated datasheet that included all the options, allowing the winged autarchs to pick whatever they wanted.
*'''Try Again. And Again. And Again. And Again... AKA Thermonuclear Frag Grenades''': Try Again Bragg from Gaunt's squad has a special rule that lets him shoot again if his Autocannon gets no hits. Bragg can throw Frag Grenades in exchange for forfeiting Autocannon fire in that shooting phase. Except, not shooting the autocannon means he gets to throw a grenade as he got no Autocannon hits, and since he threw a grenade he got no autocannon hits and thus he gets to throw a grenade and so and so forth until anything from an entire mob of Ork Boyz up to Warlord Titans and Greater Daemons die to Bragg trying again and again and again and again...
**I decided to do the math on how long this would take, just for shits and gigs. With void shields, we can effectively say that the Warlord has 144 wounds, at T9, with a 2+ save.
***Frag Grenades: Each grenade would hit 1.16 times, wound 0.19 times, and be reduced to 0.032 after saves. That means it would take '''4,500 frag grenades to kill a warlord titan''', with 2 guaranteed dice rolls (amount of shots and hit rolls), as well as 2 rolls that are unlikely. For the sake of brevity, I've done this math with the assumption that each frag grenade would take 3 rolls, meaning there would be 13500 rolls made. If it takes 5 seconds to roll a D6, '''it would take around 18 hours and 45 minutes of rolling dice to blow up a Warlord Titan in this manner.''' This of course assumes your opponent doesn't forfeit given no matter how long you take, you'll eventually manage it and there's [[Troll|nothing he can do about it]]. Also that's about 450 kilograms of grenades, roughly a Grizzly Bear worth of hand grenade.
*'''The Armor of Slight Disapproval''': In the new codex for Chaos Daemons, there is a khornate relic known as the Armor of Scorn which gives the bearer a 4+++ FNP to Mortal Wounds in the Psychic Phase and a +1 Save to any attacks that deal 1 damage. The problem is that daemons have a new form of save [[FAIL|that cannot be modified for better or for worse. In other words: The +1 save you’d get from this relic doesn’t work.]]