Hidden Cataract (Ripple Foil) #348

Hidden Cataract enters the battlefield tapped. T: Add U. 4U, T, Sacrifice Hidden Cataract: 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.)