Marrow-Gnawer {3}{B}{B}
Legendary Creature — Rat Rogue
BlackCommander: legal
Identity
Black
EDHREC rank
#3,172
Cheapest printing
US$23.64
TCGplayer
Printings
4
All Rats have fear.
{T}, Sacrifice a Rat: Create X 1/1 black Rat creature tokens, where X is the number of Rats you control.
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.