Name: Karn's Sylex Cost: 3 CMC: 3 Color: CID: Type: Legendary Artifact Rules Text: Karn's Sylex enters tapped. Players can't pay life to cast spells or to activate abilities that aren't mana abilities. {X}, {T}, Exile Karn's Sylex: Destroy each nonland permanent with mana value X or less. Activate only as a sorcery. Set/Rarity: Dominaria United Promos mythic, Dominaria United mythic Legality: Legal in timeless, Legal in pioneer, Legal in vintage, Legal in modern, Legal in legacy, Legal in gladiator, Legal in commander, Legal in historic, Legal in duel, Legal in brawl, Legal in oathbreaker Price: $0.92 Foil price: $1.26