The Archimandrite is a rare Legendary Creature — Human Advisor card from The Brothers' War Commander (BRC), collector number 26. Current market price: $0.37 (foil $0.49), TCGplayer market prices via Scryfall.
At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4. Whenever you gain life, each Advisor, Artificer, and Monk you control gains vigilance and gets +X/+0 until end of turn, where X is the amount of life you gained. Tap three untapped Advisors, Artificers, and/or Monks you control: Draw a card.