Rebellious Captives (TLA)

Creature — Human Peasant Ally

Exhaust — {6}: Put two +1/+1 counters on this creature, then earthbend 2. (Target land you control becomes a 0/0 creature with haste that's still a land. Put two +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped. Activate each exhaust ability only once.)

Niche combo piece for Ally and landfall strategies, but the six-mana activation cost is prohibitively high and the payoff—two +1/+1 counters and temporary land animation—is easily outpaced by more efficient threats in any format where it's legal.

Avatar: The Last Airbender — Common