Cavern of Souls [Avacyn Restored] Black Set: Kaladesh Prerelease Promos Type:

Set: Kaladesh Prerelease Promos Type: Enchantment Rarity: Rare Cost: {W} Creatures your opponents control enter the battlefield tapped

but for reasons known only to the two of them neither acknowledges the other—or their strained relationship

She now sees only Emrakul's visions

Of royal blood among the spirits of the air

(They can't be blocked except by artifact creatures and/or black creatures

Cavern of Souls [Avacyn Restored] Black Set: Kaladesh Prerelease Promos Type:Set: Avacyn Restored Type: Land Rare 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.