Nerva the Power Patron of Creation – Secret Rare & Starlight Rare

3 «Artmage» monsters
Must first be either Fusion Summoned, or Special Summoned (from your Extra Deck) in Defense Position by Tributing 3 monsters with different Types. You can only Special Summon «Nerva the Power Patron of Creation(s)» once per turn. While a card is in the Field Zone, this card cannot be destroyed by card effects. Once per turn, when you activate an «Artmage» monster’s effect (Quick Effect): You can make the activated effect become «Destroy all cards your opponent controls».