Shredder 03 VS Fire Lord Ozai
Just a little comparison between villains.
Modeled after ancient Japan
Shredder uses the aesthetic of the Demon Shredder and ancient Japanese warrior turned demon, using his human name and armor appearance to use the reputation already associated with it.
The Entire production of Avatar the Last Aribender uses influence from various Asian cultures. The Fire Nation takes most of its influence from Japan.
World Domination Through Technological Superiority
Shredder uses his knowledge of Utrom technology to convince ancient Japanese people he deserves the reputation of The Shredder. He employs scientists and gives them resources to advance technology for his domination designs.
During the Hundred Year War, the Fire Nation was able to use it’s position as a colonizing power to exploit the resources of the other nations and advance it’s own technology while the other nations had to use their resources to defend against the Fire Nation.
Pit their Henchmen against each other
Ozai deliberately pits his children against each other as projections of his own insecurities. He projects all his doubts and failures on Zuko, Ursa’s favorite child who represented her love for another man. He projects all his nationalism and success on Azula, his favorite child. By pitting them against each other, he gets their loyalty and the catharsis of His Child beating Ursa’s Child.
Shredder pits his henchmen against each other to keep their loyalty and motivation focused on him and his approval. Having Karai threaten Hun’s place as Shredder’s right hand man is supposed to force him to focus on fulfilling his orders, despite the fact that his failures are directly tied to the Turtles’ interference. Shredder thought that by threatening Stockman’s ego with replacement, it would motivate him to prove he was better.
They’ve Got Better Things to Do
Fire Lord Ozai is focused on World Domination! The Gaang are an obstacle to that goal and nothing more. Ozai is relatively unconcerned with the Avatar, worried enough to send his kids after him but not enough to want to do anything himself.
Shredder’s main goal isn’t killing the turtles, it’s getting off of Earth so he can go get his army and come back for world domination. He only goes after the turtles when he thinks he can manipulate Leo into joining the dark side, and after that he would have ignored the turtles if they didn’t keep getting in his way.
Formidable Opponents Who Fight as Little as possible
Ozai is seen very rarely before season 3, He’s in flashbacks all of season 1 and 2, there’s one time the audience hears his voice at the end of season1 where we see Azula for the first time. He is the motivation of Zuko and Azula, the main antagonists for season 1 and 2 respectively. But once he is on screen in the final battle with Aang, Ozai is so powerful, Aang has to pull out The Avatar State in order to beat him. And Ozai’s will is so strong he nearly wins when Aang does the energy bending.
While Shredder is on screen more than Ozai, he is still primarily a planner, he waits and manipulates others into doing his work for him. He only fights the turtles after he’s sent everyone else to weaken them, only winning that battle through ambush. In every fight with him, the problem is everyone he’s surrounded himself with. It’s the army of faceless ninja, the tech-ninja, the mystic warriors, Hun, and especially Karai. Shredder could very possibly be easily managed threat in a straight fight with four teenagers, but he’s a strategist willing to wait for the perfect opportunity to strike.