Cavern of Souls (Topper) [Ultimate Masters Box Topper] 178 Set: Black & White: Plasma

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

Set: Mirrodin Type: Artifact Rarity: Rare Cost: {2} Whenever a permanent becomes untapped

Sacrifice it at the beginning of the next end step

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

Set: Planechase Anthology Planes Type: Plane — Bolas's Meditation Realm Rarity: Common At the beginning of your end step

Cavern of Souls (Topper) [Ultimate Masters Box Topper] 178 Set: Black & White: PlasmaSet: 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.