Niv-Mizzet, Supreme {W}{U}{B}{R}{G}
Legendary Creature — Dragon Avatar
Identity
Five-color
EDHREC rank
#13,538
Cheapest printing
US$0.28
TCGplayer
Printings
5
Flying, hexproof from monocolored
Each instant and sorcery card in your graveyard that's exactly two colors has jump-start. (You may cast that card from your graveyard by discarding a card in addition to paying its other costs. Then exile it.)
Keywords: flying, hexproof from, hexproof
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.