GamePress
De-Fusion
Effect

Target 1 Fusion Monster on the field; return that target to the Extra Deck, then, if all the Fusion Material Monsters that were used for its Fusion Summon are in your Graveyard, you can Special Summon all of them.

How to Obtain?
Card Pack: Generation Next

Spell Type
Quick-Play
Spell Rarity
UR
Card Code95286165