Paradox Engine [Aether Revolt Prerelease Promos] Guardian Spend this mana only to

Spend this mana only to cast legendary spells

Set: Sword & Shield: Evolving Skies Type: Lightning Rarity: Secret Rare Retreat cost: Colorless

{T}: Each player gains control of all creatures they own

Set: Platinum: Base Set Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

put it onto the battlefield tapped

Paradox Engine [Aether Revolt Prerelease Promos] Guardian Spend this mana only toSet: Aether Revolt Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {5} Whenever you cast a spell, untap all nonland permanents you control. "One look at this glorious item convinced me that Kaladesh deserved my full attention. Sure enough, my time here has yielded exquisite fruit." Tezzeret