Performapal Whim Witch
[ Pendulum Effect ] 
If your opponent controls a face-up monster that was Special Summoned from the Extra Deck and you do not: You can Special Summon this card from your Pendulum Zone. You can only use this effect of "Performapal Whim Witch" once per turn.
[ Monster Effect ] 
This card can be treated as 2 Tributes for the Tribute Summon of a Pendulum Monster.