Fusion Substitute

Card Number: SDID-AE032
Card Type: Spell
Rarity: N
Types: Normal spell

(This card is always treated as "Polymerization".)
Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters you control as Fusion Material. You can banish this card from your GY, then target 1 Fusion Monster in your GY; return it to the Extra Deck, then draw 1 card.