Cavern of Souls (0410f) (Borderless) [The Lost Caverns of Ixalan] Pioneer and the slavering maws of

and the slavering maws of unknown evils

When God-Eternal Rhonas dies or is put into exile from the battlefield

Many scholars believe that these creatures were the result of Urza's first attempt at mechanical life

Set: International Collectors' Edition Type: Instant Rarity: Rare Cost: {U} Target spell or permanent becomes blue

Only Personal Incarnation's owner may activate this ability

Cavern of Souls (0410f) (Borderless) [The Lost Caverns of Ixalan] Pioneer and the slavering maws ofSet: The Lost Caverns of Ixalan Type: Land Rarity: Mythic 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.