Jalira, Master Polymorphist {3}{U}
Legendary Creature — Human Wizard
BlueCommander: legal
Identity
Blue
EDHREC rank
#14,512
Cheapest printing
US$0.17
TCGplayer
Printings
3
{2}{U}, {T}, Sacrifice another creature: Reveal cards from the top of your library until you reveal a nonlegendary creature card. Put that card onto the battlefield and the rest on the bottom of your library in a random order.
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.