Hidden Cataract
The Lost Caverns of Ixalan (LCI)
Hidden Cataract
Land — Cave
This land enters tapped.
: Add 
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, , Sacrifice this land: 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.)
