Cabal Patriarch {3}{B}{B}{B}
Legendary Creature — Human Wizard
BlackCommander: legal
Identity
Black
EDHREC rank
#27,161
Cheapest printing
US$0.15
TCGplayer
Printings
2
{2}{B}, Sacrifice a creature: Target creature gets -2/-2 until end of turn.
{2}{B}, Exile a creature card from your graveyard: Target creature gets -2/-2 until end of turn.
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.