Fusion Spell Cards for Polymerization in Yu Gi Oh! BEST Competitive Dark Magician Fusion spell? Secrets VS REF! Dark Magician Deck Tech New Generic Fusion Spell. Too strong? Cost too high? Not enough restrictions? : r customyugioh YuGiOh Fusion Enforcers Super Rare Battle Fusion FUEN EN056 Quick Fusion Quick Play Spell Card During the Main Phase: Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters from your hand or field as material. If your opponent controls 3