Karn, Argent Defender {2}
Legendary Artifact Creature — Golem
ColorlessCommander: legal
Identity
Colorless
EDHREC rank
#21,357
Cheapest printing
US$0.48
TCGplayer
Printings
3
Artifacts and creatures entering the battlefield don't cause abilities to trigger.
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.