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 - $3.30
Lightly Played - $3.10
Moderately Played - $2.90
Heavily Played - $2.60
Damaged - $2.10
NM-Mint Non English - $3.30
Lightly Played Non English - $3.10
Moderately Played Non English - $2.90
Heavily Played Non English - $2.60
Damaged Non English - $2.10
Foil Prices
NM-Mint Foil - $68.10
Lightly Played Foil - $64.70
Moderately Played Foil - $61.30
Heavily Played Foil - $54.50
Damaged Foil - $44.30
NM-Mint Foil Non English - $68.10
Lightly Played Foil Non English - $64.70
Moderately Played Foil Non English - $61.30
Heavily Played Foil Non English - $54.50
Damaged Foil Non English - $44.30