Kediss, Emberclaw Familiar {1}{R}
Legendary Creature — Elemental Lizard
RedCommander: legal
Identity
Red
EDHREC rank
#1,182
Cheapest printing
US$5.21
TCGplayer
Printings
3
Whenever a commander you control deals combat damage to an opponent, it deals that much damage to each other opponent.
Partner (You can have two commanders if both have partner.)
Keywords: partner
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.