I think I’m mostly set on corpse generation, the issue lies more in being able to keep my summons up (and subsequently, reliable “targeting” of the spawned waves of mobs). The amount of raw damage that the Executioner mobs do, and their ability to close a gap so quickly with their leap attack, also forces me to keep moving so I spend a lot of the fight running in circles, trying to pull summons up out of nearby corpses, then trying to regen mana (by either exploding corpses or spamming Bone Shards - the latter generates corpses because I’ve maxed Hewed Flesh) so I can let off some bone spears.