Cavern of Souls [Ultimate Masters] Guilds of Ravnica Set: Invasion Type: Instant Rarity:

Set: Invasion Type: Instant Rarity: Rare Cost: {1}{U} Counter target spell or ability an opponent controls that targets a land you control

you may put it on top of your library

return a creature card from its owner's graveyard to the battlefield under the control of that creature's owner

Exile Burning Wish

" —Lao Tzu

Cavern of Souls [Ultimate Masters] Guilds of Ravnica Set: Invasion Type: Instant Rarity: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.