Jodah, Archmage Eternal {1}{U}{R}{W}
Legendary Creature — Human Wizard
Identity
Five-color
EDHREC rank
#5,728
Cheapest printing
US$1.11
TCGplayer
Printings
4
Flying
You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells you cast.
Keywords: flying
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.