Performapal Ballad

[ Pendulum Effect ]r
Once per turn, at the start of the Damage Step, when your “Performapal” monster battles an opponent’s face-up monster: You can make that opponent’s monster lose 600 ATK (even if this card leaves the field).r
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[ Monster Effect ]r
If your “Performapal” monster attacked, after damage calculation: You can target 1 face-up monster your opponent controls; that target loses ATK equal to the ATK of that “Performapal” monster.