Cheapest priced copy (Avatar: The Last Airbender Eternal): $0.49 at Card Kingdom, near mint, their price list as of .
Dutiful Knowledge Seeker 
Creature — Fox Spirit · 2/2 · Uncommon · Avatar: The Last Airbender Eternal · #92
Whenever one or more cards are put into a library from anywhere, put a +1/+1 counter on this creature.
{3}: Put target card from a graveyard on the bottom of its owner's library.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avatar: The Last Airbender Eternal | 92 | Uncommon | $0.49 | $0.49 |