At the beginning of your upkeep, sacrifice Contamination unless you sacrifice a creature. If a land is tapped for mana, it produces {B} instead of any other type and amount.
NM-Mint - $4.20
Lightly Played - $3.80
Moderately Played - $3.30
Heavily Played - $2.90
Damaged - $2.10
NM-Mint Non English - $4.20
Lightly Played Non English - $3.80
Moderately Played Non English - $3.30
Heavily Played Non English - $2.90
Damaged Non English - $2.10
Foil Prices
NM-Mint Foil - $82.80
Lightly Played Foil - $74.50
Moderately Played Foil - $66.30
Heavily Played Foil - $58.00
Damaged Foil - $41.40
NM-Mint Foil Non English - $82.80
Lightly Played Foil Non English - $74.50
Moderately Played Foil Non English - $66.30
Heavily Played Foil Non English - $58.00
Damaged Foil Non English - $41.40