Cavern of Souls (0410f) (Borderless) [The Lost Caverns of Ixalan] Pioneer Many scholars believe that these

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

Set: Amonkhet Prerelease Promos Type: Sorcery Rarity: Rare Cost: {2}{G} Search your library for up to X basic land cards

Set: Dominaria Prerelease Promos Type: Legendary Creature — Elemental Avatar Rarity: Mythic Cost: {3}{B}{G}{U} During each of your turns

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

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

Cavern of Souls (0410f) (Borderless) [The Lost Caverns of Ixalan] Pioneer Many scholars believe that theseSet: 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.