Editing Warhammer 40,000/10th Edition Tactics/World Eaters (section)

==Faction Rules==
*'''Blessings of Khorne''': Rather than feeding bodies to a blood tithe, you just roll 8d6 at the start of the round and use those rolls to give up to 2 buffs of your choice that you qualify for to your entire army for the round.  You can't use the same dice to pay for both buffs.  You qualify by spending doubles and triples - e.g. "triple 4+" means triple 4, triple 5, or triple 6.
**Any Double
***''Rage-Fuelled Invigoration'': All units add +2M.  The odds of you being able to buy at least this buff are 100%, because you will always have either 1 triple or 2 doubles.
***''Wrathful Devotion'': All units gain a 6+++ or improve any other FNP by 1.  The odds of you being able to buy at least this buff are 100%, because you will always have either 1 triple or 2 doubles.
**Any Triple or Double of X+
***''Total Carnage (Double 4+ or any Triple)'': Whenever a model ''that hasn't fought yet'' dies in melee, they can stay up on a 4+, gaining the ability to make one last attack before going down.  The odds of you being able to buy at least this buff are 97.30%.
***''Warp Blades (Double 5+ or any Triple)'': All melee weapons gain ''Lethal Hits'' (critical hits auto-wound), which works better than Sustained Hits 1 against foes you are less likely to wound.  The odds of you being able to buy at least this buff are 92.65%.
**Any Double of X+
***''Martial Excellence (Double 3+)'': All melee weapons gain ''Sustained Hits 1'', which is identical to +1 to hit except for working better with other rules, like re-rolling hits.  It is better than Warp Blades against foes you are more likely to wound.  The odds of you being able to buy at least this buff are 94.30%.
**Any Double of X+ or Triple of Y+
***''Unbridled Bloodlust (Double 6 or Triple 4+)'': All units can charge after advancing.  The odds of you being able to buy at least this buff are 59.35%.

Because you must always have at least either 1 triple or 2 doubles, you can always afford, worst-case, either +2M and 6+++ FNP (two doubles) or your choice of one of those, Total Carnage, or '''Lethal Hits''' in melee (1 triple).

The set of 8 buffs is remarkably easy to sort by what you probably want:

#Do you need to charge the enemy?  If yes, buy Unbridled Bloodlust (average +3.5 to charge distance) if possible, and then buy Rage-Fuelled Invigoration if possible (average +2 to charge distance).  If you have not yet bought 2 buffs total, proceed.
#*The odds of a double 6 without any other 6s are 39.53% and the odds of a 4+ Triple 
#Are you already in melee and reasonably expect even a quarter of your dudes to live long enough to swing?  If yes, you want Warp Blades and Martial Excellence, but which is higher priority if you can only manage 1 of the 2 depends on chance to hit and wound: if you are wounding on 5s or 6s, Warp Blades is better, and if you are wounding on 2s or 3s, Martial Excellence is better.  If you are wounding on 3s the benefit is identical and so Martial Excellence is generally the better choice, because the wounds generated by Warp Blades can't crit and you might have Wounding mechanics in play (like Devastating Wounds). If you have not yet bought 2 buffs total, proceed.
#Buy Wrathful Devotion if possible and then Total Carnage if possible.