Parasite Fusion MP17-FR177

This card can be used as a substitute for 1 Fusion Material whose name is specifically listed on the Fusion Monster Card, but the other Fusion Materials must be correct. Otherwise, it cannot be used as Fusion Material. If this card is Special Summoned (except during the Damage Step), you can Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters you control (including this card) as Fusion Materials.