
+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 token gets +1/+1 for each artifact you control."
Karn, Scion of Urza has 6 printings, first in Dominaria (2018). EDHREC ranks it #5,468 among Commander cards. It appears most in Urza, Chief Artificer decks (2,639 on EDHREC). It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.