Elder Arthur Maxson {1}{W}{B}
Legendary Creature — Human Knight
Identity
Orzhov
EDHREC rank
#9,102
Cheapest printing
US$0.34
TCGplayer
Printings
4
Creature tokens you control have training. (Whenever a creature token you control attacks with another creature with greater power, put a +1/+1 counter on that token.)
Blind Betrayal — Sacrifice another creature: Elder Arthur Maxson gains indestructible until end of turn.
Keywords: blind betrayal
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.