Fusion Monster Cards

"Fusion" means using 2 or more monster cards together with magic card "polymerization" to create a Fusion Monster.
Each Fusion Monster Cards also lists the monster necessary to create it(Fusion Material Monster).
The color code for Fusion Monster is Violet.

 GamePlay Rules for Fusion Monster cards
During your turn if you have polymerization, Fusion Monster Card(in your fusion deck), and Fusion Material Monster to create the Fusion Monster, and activate it to Fusion Summon the Fusion Monster( Fusion summon is treated as Special Summon) in face up position.
When a Fusion Monster Card is in Graveyard , if the Fusion Monster Card return to your hand , place it back in Fusion Deck Zone.