Cavern of Souls [Ultimate Masters] DP37 Set: EX: Dragon Frontiers Type:

Set: EX: Dragon Frontiers Type: Fighting Rarity: Ultra Rare Retreat cost: Colorless

Set: Unhinged Type: Artifact Rarity: Uncommon Cost: {3} {1}

if Tombstone Stairwell is on the battlefield

As long as Gaea's Liege is attacking

Set: Exodus Type: Enchantment Rarity: Rare Cost: {2}{U}{U}{U}{U} Discard a card: You may tap or untap target artifact

Cavern of Souls [Ultimate Masters] DP37 Set: EX: Dragon Frontiers Type:Set: Ultimate Masters 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.