Memnarch {7}
Legendary Artifact Creature — Wizard
BlueCommander: legal
Identity
Blue
EDHREC rank
#7,949
Cheapest printing
US$5.16
TCGplayer
Printings
5
{1}{U}{U}: Target permanent becomes an artifact in addition to its other types. (This effect lasts indefinitely.)
{3}{U}: Gain control of target artifact. (This effect lasts indefinitely.)
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.