X-23, Deadly Weapon {2}{G}
Legendary Creature — Mutant Berserker Hero
GreenCommander: legal
Identity
Green
EDHREC rank
#21,138
Cheapest printing
US$1.46
TCGplayer
Printings
1
Whenever another Mutant you control enters, put a +1/+1 counter on that creature and a +1/+1 counter on X-23.
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.