Counterbalance 157 (Mystery Booster 2) - Future Sight Foil

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.

NM - $45.20
LP - $36.10
MP - $27.10
HP - $18.10
DMG - $9.10