Forum:Fusion Substitute Card Rulings

Hi!!! I'm new to the site, but I've been playing the game casually for about 10 years, but I'd like to enter the competitive scene.

I've just came across a "Fusion Substitute" Spell Card and added it to my deck. It says:

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

Do I need to use the Fusion Materials listed in the Fusion Monster's description to summon it? Or does the Spell Card mean I can use any monsters on my field?

Thanks in advance! Todd Marx (talk • contribs) 08:43, June 27, 2017 (UTC)