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 - $3.20
NM-Mint Non English - $3.20
Lightly Played - $3.10
Lightly Played Non English - $3.10
Moderately Played - $2.90
Moderately Played Non English - $2.90
Heavily Played Non English - $2.60
Heavily Played - $2.60
Damaged - $2.10
Damaged Non English - $2.10