Teval, the Balanced Scale {1}{B}{G}{U}
Legendary Creature — Spirit Dragon
Identity
Sultai
EDHREC rank
#2,632
Cheapest printing
US$5.68
TCGplayer
Printings
1
Flying
Whenever Teval attacks, mill three cards. Then you may return a land card from your graveyard to the battlefield tapped.
Whenever one or more cards leave your graveyard, create a 2/2 black Zombie Druid creature token.
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.