You know the sleight Zanetusken right(I might've spelled it wrong), where u need to use either three 0 attack cards or three 9 attack cards to use t, and when u do, sora does a big slash and it's supposed to take away the attack that it breaks for the rest of the battle. I keep trying on Marluxia(second and final battle, and I never beat him yet) but he keeps doing the same attacks. Anyone know if it works on only heartless or can it work on bosses?