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

Set: Portal Three Kingdoms Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during the declare attackers step and only if you've been attacked this step

You may cast the copies without paying their mana costs

Whenever Insidious Mist attacks and isn't blocked

{2}{W}: Choose a color

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."