Karn, Scion of Urza [Dominaria Prerelease Promos] Amonkhet Prerelease Promos you may return target creature

you may return target creature to its owner's hand

Whenever Insidious Mist attacks and isn't blocked

You may cast the copies without paying their mana costs

Just hope yours isn't full of coal golems

sacrifice two untapped lands instead

Karn, Scion of Urza [Dominaria Prerelease Promos] Amonkhet Prerelease Promos you may return target creatureSet: Dominaria Prerelease Promos Type: Legendary Planeswalker Karn Rarity: Mythic Cost: {4} +1: Reveal the top two cards of your library. An opponent chooses one of them. Put that card into your hand and exile the other with a silver counter on it. 1: Put a card you own with a silver counter on it from exile into your hand. 2: Create a 0 0 colorless Construct artifact creature token with "This creature gets +1 +1 for each artifact you control."