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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.
Abilities, attacks, weakness & resistance
Other cards from Dominaria United Promos
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Karn's Sylex is a Legendary Artifact promo from the Dominaria United Promos set with a prerelease stamp. It prevents players from paying life to cast spells or activate non-mana abilities and can be tapped with an X cost to exile itself and destroy each nonland permanent with mana value X or less. The card enters the battlefield tapped, which affects timing and tempo when used as a game-ending or board-reset tool.
Catalog pricing data as of 4 May 2026, 22:24
