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 - $38.700
Lightly Played - $30.900
Moderately Played - $27.100
Heavily Played - $23.200
Damaged - $19.300
Near Mint Spanish - $38.700
Lightly Played Spanish - $30.900
Moderately Played Spanish - $27.100
Heavily Played Spanish - $23.200
Damaged Spanish - $19.300