Once per battle, when an opponent's monster declares an attack: You can banish 1 Fiend or Zombie monster from your GY; negate that attack. Once per turn, when your opponent activates a card or effect that would destroy a card(s): You can banish 1 Fiend or Zombie monster from your GY; negate that activation. Once per turn, during the End Phase, if you do not control a Fiend or Zombie monster: Send this card to the GY.