Elder Arthur Maxson is a rare Legendary Creature — Human Knight card from Fallout (PIP), collector number 630. Current market price: — (foil $1.35), TCGplayer market prices via Scryfall.
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.