Karn's Sylex - Foil - Prerelease Promo

Color: Artifact
Card Text: 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.
Rarity: P
Cost: 3
Card Type: Legendary Artifact
Artist: Adam Paquette
Name: Karn's Sylex
Finish: Foil
Card Number: 234/281
Set Name: Dominaria United