Cheapest priced copy (Warhammer 40,000 Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Epistolary Librarian 
Creature — Astartes Wizard · 3/4 · Rare · Warhammer 40,000 Commander · #118
Veil of Time — Whenever this creature attacks, you may cast a spell with mana value X or less from your hand without paying its mana cost, where X is the number of attacking creatures.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Warhammer 40,000 Commander | 118 | Rare | $0.49 | — |
| Warhammer 40,000 Commander | 118★ | Rare | — | — |
One ruling from Wizards of the Coast
- 7 October 2022In Two-Headed giant and other formats where multiple players can attack at the same time, Epistolary Librarian's triggered ability counts all attacking creatures, even those controlled by other players.