Worn Powerstone [Duel Decks: Phyrexia vs. the Coalition] Xyz/Effect Monster OR Ritual Summon 1 "Magikey"

OR Ritual Summon 1 "Magikey" Ritual Monster from your hand

Scholars are uncertain whether it was the actual sound or some other magical property of the Elven Lyre that transformed its player

you can negate that monster's attack by removing from play 1 Pyro-Type monster in your Graveyard

Set: Maximum Gold Card type: Quick-Play Spell Rarity: Rare Until the end of your next turn after this card resolves

Worn Powerstone [Duel Decks: Phyrexia vs. the Coalition] Xyz/Effect Monster OR Ritual Summon 1 "Magikey"Set: Duel Decks: Phyrexia vs. the Coalition Type: Artifact Rarity: Uncommon Cost: {3} Worn Powerstone enters the battlefield tapped. {T}: Add {C}{C}. Even a fragment of a powerstone contains within it not just energy, but spacevast dimensions trapped in fragile crystal.