1 "Yubel" monster + 1 Fiend monster with 0 ATK/DEF Must be Special Summoned (from your Extra Deck) by shuffling the above cards from your hand, field, and/or GY into the Deck/Extra Deck. Cannot be used as Fusion Material. Cannot be destroyed by battle, also you take no damage from battles involving this card. When your opponent activates a monster effect (Quick Effect): You can Tribute this card; the activated effect becomes "Your opponent destroys 1 "Yubel" monster in their hand, Deck, or field". You can only use this effect of "Phantom of Yubel" once per turn.