Lae'zel, Vlaakith's Champion {2}{W}
Legendary Creature — Gith Warrior
WhiteCommander: legal
Identity
White
EDHREC rank
#1,431
Cheapest printing
US$2.70
TCGplayer
Printings
4
If you would put one or more counters on a creature or planeswalker you control or on yourself, put that many plus one of each of those kinds of counters on that permanent or player instead.
Choose a Background (You can have a Background as a second commander.)
Keywords: choose a background
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.