Cheapest priced copy (Bloomburrow Commander): $0.79 at Card Kingdom, near mint, their price list as of .
Moonstone Eulogist 
Creature — Bat Warlock · 4/4 · Rare · Bloomburrow Commander · #54
Flying
Whenever a creature an opponent controls dies, you create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this token: Draw a card.")
Whenever you sacrifice an artifact, put a +1/+1 counter on this creature and you gain 1 life.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.79 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Bloomburrow Commander | 19 | Rare | $0.79 | — |
| Bloomburrow Commander | 54 | Rare | $0.99 | — |
4 rulings from Wizards of the Coast
- 26 July 2024If Moonstone Eulogist and one or more creatures opponents control die at the same time, its second ability will trigger for each of those creatures opponents controlled that died.
- 24 January 2025If an effect refers to a Blood token, it means any artifact token with the subtype Blood, even if it has gained other subtypes.
- 24 January 2025You can't sacrifice a Blood token to pay multiple costs.
- 24 January 2025Some triggered abilities trigger "whenever you sacrifice a Blood token." These abilities trigger regardless of why you sacrificed that Blood token.