At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color.
Near Mint - $6.60
Lightly Played - $5.90
Played - $4.60
Heavily Played - $4.00
Damaged - $3.30
Near Mint Non-English - $6.60
Lightly Played Non-English - $5.90
Played Non-English - $4.60
Heavily Played Non-English - $4.00
Damaged Non-English - $3.30