Clara Oswald {6}
Legendary Creature — Human Advisor
ColorlessCommander: legal
Identity
Colorless
EDHREC rank
#13,501
Cheapest printing
US$0.33
TCGplayer
Printings
4
Impossible Girl — If Clara Oswald is your commander, choose a color before the game begins. Clara Oswald is the chosen color.
If a triggered ability of a Doctor you control triggers, that ability triggers an additional time.
Doctor's companion (You can have two commanders if the other is the Doctor.)
Keywords: impossible girl, doctor's companion
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.