Cheapest priced copy (Avatar: The Last Airbender Eternal): $0.35 at Card Kingdom, near mint, their price list as of .
Eel-Hounds 
Creature — Fish Dog · 4/2 · Uncommon · Avatar: The Last Airbender Eternal · #250
Trample (This creature can deal excess combat damage to the player it's attacking.)
Whenever this creature attacks, another target creature you control gets +2/+2 and gains trample until end of turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avatar: The Last Airbender Eternal | 250 | Uncommon | $0.35 | $0.49 |