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At the beginning of your upkeep, sacrifice this enchantment unless you sacrifice a creature. If a land is tapped for mana, it produces {B} instead of any other type and amount.
Abilities, attacks, weakness & resistance
Other cards from Urza's Saga
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Contamination (USG 123) is a black enchantment from Urza's Saga. It forces lands to produce only black mana by replacing mana production, dramatically color-fixing opponents' sources. Each upkeep you must sacrifice a creature or sacrifice this enchantment, creating a recurring upkeep tax for creature-based decks.
Catalog pricing data as of 22 Apr 2026, 12:47
