Mox Opal [Double Masters] Theros Beyond Death Prerelease Promos Other non-Human creatures you control

Other non-Human creatures you control get +1/+1 and have undying

Your opponent cannot target this card for attacks

shuffle your graveyard into your library

Set: Alpha Edition Type: Artifact Rarity: Uncommon Cost: {1} Whenever a creature dies

at the start of your Battle Phase: You can detach 1 Xyz Material from this card

Mox Opal [Double Masters] Theros Beyond Death Prerelease Promos Other non-Human creatures you controlSet: Double Masters Type: Legendary Artifact Rarity: Mythic Cost: {0} Metalcraft {T}: Add one mana of any color. Activate only if you control three or more artifacts. The suns of Mirrodin have shone upon perfection only once.