Vision HERO Vyon

If this card is Normal or Special Summoned: You can send 1 "HERO" monster from your Deck to the GY. You can only use this effect of "Vision HERO Vyon" once per turn. Once per turn: You can banish 1 "HERO" monster from your GY; add 1 "Polymerization" from your Deck to your hand.

Warrior DARK Effect Monster 4 effect