Sanctum of Eternity [Commander 2019] Rivals of Ixalan put it onto the battlefield

put it onto the battlefield tapped

you may cast it without paying its mana cost

Set: Ixalan Prerelease Promos Type: Land Rarity: Rare Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp

"Time flows like a river

Repeat this process until you put a card into your hand or you exile two cards with the same name

Sanctum of Eternity [Commander 2019] Rivals of Ixalan put it onto the battlefieldSet: Commander 2019 Type: Land Rarity: Rare {T}: Add {C}. {2}, {T}: Return target commander you own from the battlefield to your hand. Activate only during your turn. Come and rest here, beyond the constraints of space and time.