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 - $13.900
Lightly Played - $11.100
Moderately Played - $9.700
Heavily Played - $8.300
Damaged - $6.900
Near Mint Spanish - $13.900
Lightly Played Spanish - $11.100
Moderately Played Spanish - $9.700
Heavily Played Spanish - $8.300
Damaged Spanish - $6.900