Talion, the Kindly Lord {2}{U}{B}
Legendary Creature — Faerie Noble
Identity
Dimir
EDHREC rank
#1,737
Cheapest printing
US$7.76
TCGplayer
Printings
4
Flying
As Talion enters, choose a number between 1 and 10.
Whenever an opponent casts a spell with mana value, power, or toughness equal to the chosen number, that player loses 2 life and you draw a card.
Keywords: flying
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.