O-Kagachi, Vengeful Kami {1}{W}{U}{B}{R}{G}
Legendary Creature — Dragon Spirit
Identity
Five-color
EDHREC rank
#8,486
Cheapest printing
US$0.40
TCGplayer
Printings
3
Flying, trample
Whenever O-Kagachi deals combat damage to a player, if that player attacked you during their last turn, exile target nonland permanent that player controls.
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.