Zhulodok, Void Gorger {5}{C}
Legendary Creature — Eldrazi
ColorlessCommander: legal
Identity
Colorless
EDHREC rank
#2,833
Cheapest printing
US$17.15
TCGplayer
Printings
3
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.)
Every printing
highest TCGplayer market first; a card with only a thin single listing shows its low
In short
A Commander deck is a commander and 99 other cards, one copy of each (except basic lands), all inside the commander's colour identity. Paste a full list into the deck price calculator to price it and check it against the format.