Éowyn, Fearless Knight {2}{R}{W}
Legendary Creature — Human Knight
Identity
Boros
EDHREC rank
#3,267
Cheapest printing
US$0.80
TCGplayer
Printings
4
Haste
When Éowyn enters, exile target creature an opponent controls with greater power. Legendary creatures you control gain protection from each of that creature's colors until end of turn.
Keywords: haste
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.