Cavern of Souls (Expeditions) [Zendikar Rising Expeditions] Sealed target opponent sacrifices half the

target opponent sacrifices half the nonland permanents they control

When Synchro Summoned

If a card your opponent owns and possesses is banished face-down while you control this card (except during the Damage Step): You can banish cards from the top of your opponent's Deck

Set: Sun & Moon: Base Set Type: Water Rarity: Secret Rare Retreat cost: Colorless

you cannot Normal Summon

Cavern of Souls (Expeditions) [Zendikar Rising Expeditions] Sealed target opponent sacrifices half theSet: Zendikar Rising Expeditions 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.