River of Tears [Murders at Karlov Manor Commander]

Set: Murders at Karlov Manor Commander Type: Land Rarity: Rare T: Add U to your mana pool. If you played a land this turn, add B to your mana pool instead. "The Westfolk wept, and their tears wore winding rivers into the cheek of the world." —Glem the Lonebard, "Origins of Kholon"