Karn's Sylex (Promo Pack) [Dominaria United Promos] Squid so their predators have developed

so their predators have developed alternative weaponry

"First through the Riftstone was Genesis—and the world was lifeless no more

Set: Duel Decks Anthology Type: Land Rarity: Common Forgotten Cave enters the battlefield tapped

Set: Ultimate Masters Type: Enchantment — Aura Rarity: Common Cost: {W} Enchant creature

Karn's Sylex (Promo Pack) [Dominaria United Promos] Squid so their predators have developedSet: 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.