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.
NM-Mint Foil - $591.10
Lightly Played Foil - $532.00
Moderately Played Foil - $472.90
Heavily Played Foil - $413.80
Damaged Foil - $295.60
NM-Mint Foil Non English - $591.10
Lightly Played Foil Non English - $532.00
Moderately Played Foil Non English - $472.90
Heavily Played Foil Non English - $413.80
Damaged Foil Non English - $295.60