Lets take a card like Adv. Homing Missile. If you hit, deal one face up damage card, then cancel all dice results.
Just for my own better understanding of the rules, why do we cancel the results after the hit and damage card has been done? Assuming you *didn't* cancel the results, what sort of shenanigans could one do? I feel there's a purpose for that line, I just don't know what it is.