Hidden Necropolis

The Lost Caverns of Ixalan
#275

Land — Cave

Hidden Necropolis enters tapped. : Add . , , Sacrifice Hidden Necropolis: Discover 4. Activate only as a sorcery. (Exile cards from the top of your library until you exile a nonland card with mana value 4 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)