During damage calculation, if your Pendulum Monster attacks an opponent's monster: You can make that opponent's monster lose 100 ATK for each "Performapal" and "Odd-Eyes" card you control, during damage calculation only.

Pendulum Scale: 6
Pendulum Effect: If your "Performapal" or "Odd-Eyes" monster attacks a Defense Position monster, inflict piercing battle damage to your opponent.