Karn's Sylex [Dominaria United Prerelease Promos] BT12-009 create seven 1/1 green Insect

create seven 1/1 green Insect creature tokens

Silumgar dominates his clan from a fortress on the Marang River

destroy target artifact that player controls

After this main phase

you may play it this turn as though it were an instant and it costs X resource points less to play

Karn's Sylex [Dominaria United Prerelease Promos] BT12-009 create seven 1/1 green InsectSet: Dominaria United Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {3} 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.