Karn's Sylex (Promo Pack) [Dominaria United Promos] Devil put a +1/+1 counter on

put a +1/+1 counter on Champion of the Perished

you may pay {0} rather than pay this spell's mana cost

you might as well trade it for something else

its stionable content may lead to people learning dangerously misinformed lessons

{T}: You may put a creature card with mana value equal to the number of charge counters on Aether Vial from your hand onto the battlefield

Karn's Sylex (Promo Pack) [Dominaria United Promos] Devil put a +1/+1 counter onSet: Dominaria United 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.