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 - $7,500
Lightly Played - $6,000
Moderately Played - $5,200
Heavily Played - $4,500
Damaged - $3,800
Near Mint Spanish - $7,500
Lightly Played Spanish - $6,000
Moderately Played Spanish - $5,200
Heavily Played Spanish - $4,500
Damaged Spanish - $3,800