Living Brain, Mechanical Marvel {4}
Legendary Artifact Creature — Robot Villain
ColorlessCommander: legal
Identity
Colorless
EDHREC rank
#16,088
Cheapest printing
US$0.15
TCGplayer
Printings
1
At the beginning of combat on your turn, target non-Equipment artifact you control becomes an artifact creature with base power and toughness 3/3 until end of turn. Untap it.
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.