Cheapest priced copy (Adventures in the Forgotten Realms): $0.49 at Card Kingdom, near mint, their price list as of .
Kalain, Reclusive Painter 
Legendary Creature — Human Elf Bard · 1/2 · Uncommon · Adventures in the Forgotten Realms · #342
When Kalain enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
Other creatures you control enter with an additional +1/+1 counter on them for each mana from a Treasure spent to cast them.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.49 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Adventures in the Forgotten Realms | 225 | Uncommon | $0.49 | $1.49 |
| Adventures in the Forgotten Realms | 342 | Uncommon | $0.49 | $1.99 |