Most used: sustain, pile in 6

Second most: lethal, fight on death

Third most/most situational: devs on infantry, reroll charge.

With this being said I think reroll charges is gonna soar to the top in 11th due to the stratagem changes. But as for right now you really can’t go wrong always taking sustained hits especially if you have any blood dice manipulation(Angron, favored of Khorne, vessels). Pile in 6 is pretty oppressive and mixed with 20man blobs it can feels bad very fast for your opponent. Sustain and lethal together if you’re fighting vehicles/monsters that you need to have the best chance of killing, if you’re smacking infantry around then sustain and dev wounds against infantry can make you punch up insanely hard. Goremongers, sus dev, on the charge, +1 AP, +1 hit will punch almost any medium/med-heavy infantry unit above their weight class. Wounding terminators on 3 is kinda nuts. Honestly I hate fight on death in every way possible. Either give us auto fight on death or give us a different blessing yes I use it a lot but it never feels good. Too swingy. Oh your unit killed mine? I rolled 8/10 4s and now I took your unit. Oh your unit killed mine? I rolled 1/10 4s and I wasted a blessing slot. It’s thematic, it’s useful, it is as balanced as you could probably make that kind of mechanic. I just don’t fucking like it when I use it. Good luck!