When I use Raise Bloated Corpse, I can choose any kind of corpse, even on corpses I've already casted it on/blown up. Mass corpse explosion seems to work the same more or less (works as consistent as Raise Bloated Corpse), but regular Corpse Explosion only seems to work on corpses that are intact and not affected by any element (a burned corpse can't be targeted for example). I could understand that Mass Corpse Explosion might have less strict targeting since it's a source ability, but I think regular Corpse Explosion should be a little more consistent with other corpse targeted abilities (at least usable on intact corpses).
