Karn, Scion of Urza (Prerelease) (Dominaria) - (Foil): Dominaria Promos 15 Sacrifice Bloodstained Mire: Search your

Sacrifice Bloodstained Mire: Search your library for a Swamp or Mountain card

and/or library for a card with the same name as that spell and put it onto the battlefield

put a +1/+1 counter on it

Activate only as a sorcery and only if an opponent has eight or more cards in their graveyard

Karn, Scion of Urza (Prerelease) (Dominaria) - (Foil): Dominaria Promos 15 Sacrifice Bloodstained Mire: Search your[+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."