Battlin' Boxer Counterpunch

[ Warrior / Effect ] During the Damage Step of either player's turn, when a "Battlin' Boxer" monster you control is attacking or being attacked: You can banish this card from your hand or Graveyard; that monster gains 1000 ATK, until the end of this turn. You can only use the effect of "Battlin' Boxer Counterpunch" once per turn. ATK/ 0 DEF/ 1100