Karn's Sylex enters the battlefield 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.
![Karn's Sylex [Dominaria United Prerelease Promos]](http://paradoxtcg.com/cdn/shop/products/5df4829d-8b51-5c85-9c6e-e542d31e935b.jpg?v=1702314551&width=1445)
