In the beginning, Zuko is an incredibly focused, teenage Firebender who bullies and intimidates everyone around him. He is obsessed by only one desire: to capture the Avatar. Zuko's greatest weaknesses are his arrogance and impatience. He believes Firebending is the most dominant art and can never be bested by Water, Earth, or Airbending. Zuko's teenage overconfidence makes him believe he's invincible. Zuko charges into conflict impulsively and without precaution. As the series progresses, however, Zuko develops compassion towards the nations he's terrorized. Ultimately, he renounces the Fire Nation and joins up with Aang to teach him Firebending.