[STRATEGY] DE-FUSE AND RE-USE "De-Fusion" lets you split a Fusion Monster back into its Fusion Material parts. An awesome trick with this card is to wait until the Battle Phase to activate it. Let's say you activate "De-Fusion" and target your "Cyber End Dragon" after it attacks. Then 3 "Cyber Dragons" get Special Summoned, and then they can all attack! If you catch your opponent off guard, you can end the Duel in one turn!