Denethor, Ruling Steward {1}{W}{B}
Legendary Creature — Human Noble
Identity
Orzhov
EDHREC rank
#7,296
Cheapest printing
US$0.25
TCGplayer
Printings
2
At the beginning of your end step, if a creature died under your control this turn, create a 1/1 white Human Soldier creature token.
{2}, Sacrifice another creature: Each opponent loses 1 life and you gain 1 life.
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.