Cavern of Souls [Ultimate Masters] FAB070 Set: Fallout Type: Legendary Creature

Set: Fallout Type: Legendary Creature — Zombie Mutant Advisor Rarity: Rare Cost: {2}{B} Each other creature you control that's a Zombie or Mutant gets +X/+X

but you may put it on top of your library instead of into your graveyard

When Archangel Avacyn enters the battlefield

When Rune-Scarred Demon enters the battlefield

Set: The List Type: Creature — Hydra Rarity: Mythic Cost: {G}{G}{G}{G}{G}{G}{G}{G} This spell costs {G} less to cast for each green creature you control

Cavern of Souls [Ultimate Masters] FAB070 Set: Fallout Type: Legendary CreatureSet: 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.