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 - $2.75
Near Mint Non-English - $2.75
Lightly Played - $2.50
Lightly Played Non-English - $2.50
Moderately Played - $2.25
Moderately Played Non-English - $2.25
Heavily Played - $1.75
Heavily Played Non-English - $1.75
Damaged - $1.50
Damaged Non-English - $1.50