Black Widow, Agile Avenger {1}{R}{W}
Legendary Creature — Human Spy Hero
Identity
Boros
EDHREC rank
#7,889
Cheapest printing
US$3.78
TCGplayer
Printings
3
Menace
Whenever an opponent draws their second card each turn, put a +1/+1 counter on Black Widow and you draw a card.
Keywords: menace
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.