Cheapest priced copy (Avatar: The Last Airbender Eternal): $0.49 at Card Kingdom, near mint, their price list as of .
Baboon Spirit 
Creature — Monkey Spirit · 2/4 · Rare · Avatar: The Last Airbender Eternal · #177
Whenever another nontoken Spirit you control enters, create a 1/1 colorless Spirit creature token with "This token can't block or be blocked by non-Spirit creatures."
{3}{U}: Exile another target creature you control. Return it to the battlefield under its owner's control at the beginning of the next end step.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 to $0.59 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avatar: The Last Airbender Eternal | 89 | Rare | $0.49 | $0.49 |
| Avatar: The Last Airbender Eternal | 177 | Rare | $0.59 | $0.49 |