Cavern of Souls (Topper) [Ultimate Masters Box Topper] 178 Set: Amonkhet Invocations Type: Sorcery

Set: Amonkhet Invocations Type: Sorcery Rarity: Mythic Cost: {1}{B} As an additional cost to cast this spell

Set: Black & White: Plasma Freeze Type: Lightning Rarity: Ultra Rare Retreat cost: Colorless

Set: Gym Challenge 1st Edition Type: Grass Rarity: Holo Rare Retreat cost: Colorless

Set: Battle Royale Type: Instant Rarity: Common Cost: {U}{U} Counter target spell

Cavern of Souls (Topper) [Ultimate Masters Box Topper] 178 Set: Amonkhet Invocations Type: SorcerySet: Ultimate Masters Box Topper 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.