Valgavoth's Lair [Duskmourn: House of Horror Prerelease Promos]

Set: Duskmourn: House of Horror Prerelease Promos Type: Land Enchantment Rarity: Rare Hexproof Valgavoth's Lair enters tapped. As it enters, choose a color. {T}: Add one mana of the chosen color. It is the one chamber whose location never changes, the rotten, rancorous heart of Duskmourn itself.