Lyla, Holographic Assistant {3}{U}
Legendary Artifact Creature — Illusion Advisor
BlueCommander: legal
Identity
Blue
EDHREC rank
#6,033
Cheapest printing
US$3.80
TCGplayer
Printings
1
Whenever you draw a card, put a +1/+1 counter on target creature.
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.