Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.
Near Mint - $28.90
Lightly Played - $23.20
Moderately Played - $20.30
Heavily Played - $17.40
Damaged - $14.50
Near Mint Spanish - $28.90
Lightly Played Spanish - $23.20
Moderately Played Spanish - $20.30
Heavily Played Spanish - $17.40
Damaged Spanish - $14.50