The Dark - Hex-Sealed Fusion (FET-EN028) - () - Flaming Eternity 1st Edition

You can substitute this card for any 1 Fusion-Material Monster. When you do this, the other Fusion-Material Monster(s) must be the correct one(s).
Tribute Fusion-Material Monsters on the field, including this card, to Special Summon 1 DARK Fusion Monster from your Fusion Deck.