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Cavern of Souls (Topper) [Ultimate Masters Box Topper]
| Set: | 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.
{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.