Name:Contamination
ManaCost:2 B
Types:Enchantment
T:Mode$ Phase | Phase$ Upkeep | ValidPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigUpkeep | TriggerDescription$ At the beginning of your upkeep, sacrifice CARDNAME unless you sacrifice a creature.
SVar:TrigUpkeep:DB$ Sacrifice | UnlessPayer$ You | UnlessCost$ Sac<1/Creature>
R:Event$ ProduceMana | ActiveZones$ Battlefield | ValidCard$ Land | ReplaceWith$ ProduceB | Description$ If a land is tapped for mana, it produces {B} instead of any other type and amount.
SVar:ProduceB:DB$ ReplaceMana | ReplaceMana$ B
AI:RemoveDeck:All
SVar:NonStackingEffect:True
Oracle:At the beginning of your upkeep, sacrifice Contamination unless you sacrifice a creature.\nIf a land is tapped for mana, it produces {B} instead of any other type and amount.
