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.
NM-Mint - $2.00
Lightly Played - $1.80
Moderately Played - $1.60
Heavily Played - $1.40
Damaged - $1.00
NM-Mint Non English - $2.00
Lightly Played Non English - $1.80
Moderately Played Non English - $1.60
Heavily Played Non English - $1.40
Damaged Non English - $1.00