Cavern of Souls 320 (Double Masters 2022)

As this land enters, 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.

NM - $97.40
LP - $77.90
MP - $58.50
HP - $39.00
DMG - $19.50