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.
Near Mint - $8.00
Lightly Played - $6.40
Moderately Played - $5.60
Heavily Played - $4.80
Damaged - $4.00
Near Mint Spanish - $8.00
Lightly Played Spanish - $6.40
Moderately Played Spanish - $5.60
Heavily Played Spanish - $4.80
Damaged Spanish - $4.00