Cavern of Souls [Modern Masters 2017] XY206 Trap Card or Effect Monster's

Trap Card or Effect Monster's effect and destroy all cards your opponent controls

•Select and add 1 "Elemental Hero" or "Destiny Hero" monster from your Deck to your hand

negate the Summons or activation

If an opponent's monster in the Extra Monster Zone is destroyed by battle

If you do not

Cavern of Souls [Modern Masters 2017] XY206 Trap Card or Effect Monster'sSet: Modern Masters 2017 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.