User:AntiFusionWarrior13/Sandbox

Anti-Fusion Monsters, colored light blue, are cards representing a combination of two or more monsters gone wrong. Anti-Fusion Monsters may only be included in the Extra Deck, and cannot exist in the hand or Main Deck. If an Anti-Fusion Monster is returned to its owner's hand or Deck, it is instead sent back to the Extra Deck. However, they may be sent to the Graveyard when destroyed, as well as Removed from Play.

Originally, the only way to properly summon an Anti-Fusion Monster was through an Anti-Fusion Summon involving destroying a Fusion Monster with the required cards as Fusion Material using AntiPolymerization. Most Anti-Fusion Monsters are parallels to existing Fusion Monsters.