Cheapest priced copy (Avatar: The Last Airbender): $0.35 at Card Kingdom, near mint, their price list as of .
Hog-Monkey 
Creature — Boar Monkey · 3/2 · Common · Avatar: The Last Airbender · #104
At the beginning of combat on your turn, target creature you control with a +1/+1 counter on it gains menace until end of turn. (It can't be blocked except by two or more creatures.)
Exhaust — {5}: Put two +1/+1 counters on this creature. (Activate each exhaust ability only once.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avatar: The Last Airbender | 104 | Common | $0.35 | $0.49 |
4 rulings from Wizards of the Coast
- 2 October 2025If an exhaust ability of a permanent is activated, and then that permanent leaves the battlefield and returns to the battlefield, it becomes a new object so its exhaust ability can be activated again.
- 2 October 2025The creature you target must have a +1/+1 counter on it when the ability goes on the stack at the beginning of combat. You cannot put the counter on it in response.
- 2 October 2025Exhaust abilities can be activated any time you could normally activate an ability.
- 2 October 2025If an ability triggers whenever you activate an exhaust ability, that ability resolves before the exhaust ability resolves.