Obeka, Brute Chronologist {1}{U}{B}{R}
Legendary Creature — Ogre Wizard
Identity
Grixis
EDHREC rank
#7,772
Cheapest printing
US$0.34
TCGplayer
Printings
4
{T}: The player whose turn it is may end the turn. (Exile all spells and abilities from the stack. The player whose turn it is discards down to their maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)
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.