Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce.
NM-Mint - $17.20
Lightly Played - $15.50
Moderately Played - $13.80
Heavily Played - $12.00
Damaged - $8.60
NM-Mint Non English - $17.20
Lightly Played Non English - $15.50
Moderately Played Non English - $13.80
Heavily Played Non English - $12.00
Damaged Non English - $8.60