
Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.
Counterbalance has 6 printings, first in Coldsnap (2006). EDHREC ranks it #3,445 among Commander cards. It appears most in Glarb, Calamity's Augur decks (5,573 on EDHREC). It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.