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 - $37.700
Lightly Played - $30.100
Moderately Played - $26.400
Heavily Played - $22.600
Damaged - $18.900
Near Mint Spanish - $37.700
Lightly Played Spanish - $30.100
Moderately Played Spanish - $26.400
Heavily Played Spanish - $22.600
Damaged Spanish - $18.900