The Dark - Hex-Sealed Fusion (LCYW-EN263) - Legendary Collection 3: Yugi's World 1st Edition

You can substitute this card for any 1 Fusion Material Monster. The other Fusion Material Monster(s) must be the correct one(s). By Tributing Fusion Material Monsters on the field, including this card, Special Summon 1 DARK Fusion Monster from your Fusion Deck.