Cavern of Souls [Ultimate Masters] Dragon If that card's converted mana

If that card's converted mana cost is less than or equal to the sacrificed artifact's converted mana cost

If you win the flip

if that creature was destroyed this way

Set: Unglued Type: Artifact Rare Cost: {0} {T}

Set: Magic 2011 Type: Artifact Creature — Angel Mythic Cost: {7} Flying You can't lose the game and your opponents can't win the game

Cavern of Souls [Ultimate Masters] Dragon If that card's converted manaSet: Ultimate Masters Type: Land 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.