Cavern of Souls [Ultimate Masters] Mutant Set: Ultimate Masters Type: Artifact

Set: Ultimate Masters Type: Artifact Rarity: Rare Cost: {3} Sacrifice a creature: Add one mana of any color

{T}: Add {C}{C}{C}

Set: Ultimate Masters Type: Creature — Faerie Wizard Rarity: Rare Cost: {3}{U} Flying {U}

target instant or sorcery card in your graveyard gains flashback until end of turn

Set: Ultimate Box Topper Type: Sorcery Rarity: Mythic Cost: {3}{U}{U} Take an extra turn after this one

Cavern of Souls [Ultimate Masters] Mutant Set: Ultimate Masters Type: ArtifactSet: Ultimate Masters Type: Land Rarity: Mythic Cost: 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.