Karn, Scion of Urza [Dominaria Prerelease Promos] ARC018-R you may search your library

you may search your library for an Equipment card

Set: EX: Holon Phantoms Type: Fire Rarity: Ultra Rare Retreat cost: Colorless

−12: Exile all cards from target player's library

(It can't be blocked as long as defending player controls a Forest

Karn, Scion of Urza [Dominaria Prerelease Promos] ARC018-R you may search your librarySet: 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."