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.
Near Mint - $36.800
Lightly Played - $29.400
Moderately Played - $25.700
Heavily Played - $22.100
Damaged - $18.400
Near Mint Spanish - $36.800
Lightly Played Spanish - $29.400
Moderately Played Spanish - $25.700
Heavily Played Spanish - $22.100
Damaged Spanish - $18.400