The Prydwen, Steel Flagship {4}{W}{W}
Legendary Artifact — Vehicle
WhiteCommander: legal
Identity
White
EDHREC rank
#6,895
Cheapest printing
US$0.33
TCGplayer
Printings
4
Flying
Whenever another nontoken artifact you control enters, create a 2/2 white Human Knight creature token with "This token gets +2/+2 as long as an artifact entered the battlefield under your control this turn."
Crew 2
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.