So the second aspect of Grave Injustice gives a chance to instantly defeat an opponent when using a lvl 3 blockbuster if Dark Might has no remaining teammates. My question on this is: does this proc based on each hit in a lvl 3 BB, or does it proc once upon activation of a lvl 3 BB? For instance: 3 Wulf Moonsault hits less times than Wulfamania! Does that mean Wulfamania! is the better BB to put on Dark Might, or do both BBs have the same chance to insta-down an opponent through Dark Might's SA?