Archivist of Gondor is a rare Creature — Human Advisor card from Tales of Middle-earth Commander (LTC), collector number 420. Current market price: $0.48 (foil $0.80), TCGplayer market prices via Scryfall.
When your commander deals combat damage to a player, if there is no monarch, you become the monarch. At the beginning of the monarch's end step, that player draws a card.