You can use the (1) effect with this card’s name only once per turn.
(1) At the start of the Damage Step, if your “P.U.N.K.” monster is battling an opponent’s monster: You can destroy that opponent’s monster.
(2) If this card in its owner’s Spell & Trap Zone is destroyed by an opponent’s card effect: You can activate this effect; for the rest of this turn, “P.U.N.K.” monsters you currently control cannot be destroyed by battle.