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 - $0.40
Lightly Played - $0.40
Moderately Played - $0.30
Heavily Played - $0.20
Damaged - $0.10
Near Mint French - $0.40
Lightly Played French - $0.40
Moderately Played French - $0.30
Heavily Played French - $0.20
Damaged French - $0.10