Performapal Extra Slinger

[ Pendulum Effect ]
During your Main Phase: You can inflict 300 damage to your opponent for each face-up Pendulum Monster in your Extra Deck. You can only use this effect of "Performapal Extra Slinger" once per turn. You cannot Pendulum Summon the turn you activate this effect.

[ Monster Effect ]
Once per turn: You can banish 1 card from your Extra Deck, then target 1 card in a Pendulum Zone; destroy it, and if you do, inflict 300 damage to your opponent.