Fusion, Synchro, and Xyz Monsters your opponent controls cannot activate their effects. Once per turn, when a card(s) is added from the Main Deck to your opponent's hand (except during the Draw Phase or the Damage Step): You can destroy that card(s).
Monster Effect
4 Dragon monsters (1 Fusion, 1 Synchro, 1 Xyz, and 1 Pendulum) Must be Fusion Summoned. If this card is Special Summoned: Destroy all cards your opponent controls. Cannot be destroyed by your opponent's card effects. Your opponent cannot target this card with card effects. When this card destroys an opponent's monster by battle: You can Special Summon 1 "Supreme King Dragon" monster from your Deck or Extra Deck. If this card in the Monster Zone is destroyed by battle or card effect: You can place this card in your Pendulum Zone.
