Cavern of Souls [Ultimate Masters] The Dark leaves the battlefield

leaves the battlefield

if it's not that player's turn

Set: Zendikar Expeditions Type: Land — Swamp Mountain Rarity: Mythic ({T}: Add {B} or {R}

Only magic of great power can start its eldritch resonance

Set: Friday Night Magic 2005 Type: Enchantment Rarity: Rare Cost: {1}{W} Sacrifice Seal of Cleansing: Destroy target artifact or enchantment

Cavern of Souls [Ultimate Masters] The Dark leaves the battlefieldSet: Ultimate Masters Type: Land Rarity: Mythic As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.