Errant, Street Artist {U}
Legendary Creature — Human Rogue
BlueCommander: legal
Identity
Blue
EDHREC rank
#8,963
Cheapest printing
US$0.33
TCGplayer
Printings
5
Flash
Defender, haste
{1}{U}, {T}: Copy target spell you control that wasn't cast. You may choose new targets for the copy.
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.