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Cavern of Souls (Foil Etched) [Double Masters 2022] JIm Henson's Labyrinth The final section is aSet: Double Masters 2022 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.