Jiwari, the Earth Aflame {3}{R}{R}
Legendary Creature — Spirit
RedCommander: legal
Identity
Red
EDHREC rank
#24,764
Cheapest printing
US$0.39
TCGplayer
Printings
1
{X}{R}, {T}: Jiwari deals X damage to target creature without flying.
Channel — {X}{R}{R}{R}, Discard this card: It deals X damage to each creature without flying.
Keywords: channel
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.