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.
Near Mint - $4,000
Lightly Played - $3,200
Moderately Played - $2,800
Heavily Played - $2,400
Damaged - $2,000
Near Mint Spanish - $4,000
Lightly Played Spanish - $3,200
Moderately Played Spanish - $2,800
Heavily Played Spanish - $2,400
Damaged Spanish - $2,000