Cheapest priced copy (The Brothers' War Commander): $0.49 at Card Kingdom, near mint, their price list as of .
The Archimandrite 
Legendary Creature — Human Advisor · 0/5 · Rare · The Brothers' War Commander · #26
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.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Brothers' War Commander | 26 | Rare | $0.49 | $0.49 |
| The Brothers' War Commander | 46 | Rare | $0.49 | $0.49 |
2 rulings from Wizards of the Coast
- 14 October 2022You can’t gain negative amounts of life. If you have fewer than four cards in hand as the first ability resolves, you won’t gain any life, but you won’t lose any life either.
- 14 October 2022Since The Archimandrite’s activated ability doesn’t have a tap symbol in its cost, you can tap creatures that haven’t been under your control since your most recent turn began (including The Archimandrite itself) to pay the cost.