Maeve, Insidious Singer {2}{U}{U}
Legendary Creature — Siren
BlueCommander: legal
Identity
Blue
EDHREC rank
#14,892
Cheapest printing
US$12.13
TCGplayer
Printings
1
{2}{U}: Goad target creature. Whenever that creature attacks one of your opponents this turn, you draw a card. (A goaded creature attacks each combat if able and attacks a player other than you if able, until your next turn.)
Keywords: goad
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.