Counterbalance (CSP)
From The List & Mystery Booster
Card details
Enchantment
Uncommon
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 converted mana cost as the revealed card.
Artist: John Zeleznik
Card details
Enchantment
Uncommon
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 converted mana cost as the revealed card.
Artist: John Zeleznik
All versions of Counterbalance