Cavern of Souls (0410f) (Borderless) [The Lost Caverns of Ixalan] Pioneer Set: International Collectors' Edition Type:

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

—Zhalfirin aphorism

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {1}{B} Target player sacrifices a creature

Set: Conspiracy Type: Artifact Rarity: Mythic Cost: {4} Will of the council — At the beginning of your upkeep

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

Cavern of Souls (0410f) (Borderless) [The Lost Caverns of Ixalan] Pioneer Set: International Collectors' Edition Type:Set: 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.