Colorless spells you cast from your hand with mana value 7 or greater have "Cascade, cascade." (When you cast one, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order. Then do it again.)
Zhulodok, Void Gorger has 3 listed printings; the most valuable is the Extended Art printing from CMM at US$52.34 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
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