Cavern of Souls [Modern Masters 2017] Portal Second Age Set: Battle for Zendikar Type:

Set: Battle for Zendikar Type: Legendary Creature — Eldrazi Mythic Cost: {10} When you cast this spell

His marvels of artifice pale in comparison to the developing machinery of his mind

you may skip that turn instead

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

draw four cards

Cavern of Souls [Modern Masters 2017] Portal Second Age Set: Battle for Zendikar Type:Set: Modern Masters 2017 Type: Land Mythic 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.