In an alternate universe of Avatar: The Last Airbender, Ty Lee becomes the stretchable Ms. Fantastic, Katara as Invisible Woman, Azula as the Human Torch, and Toph Beifong as the Thing. They become

Title: The Fantastic Four of Avatar: Reımagined In this alternative universe, sprawling beside the Fire Nation and the Earth Kingdom were the lost cities of the Omaticaya and the Arusians, where instead of mastering an element, the inhabitants wielded mysterious powers gained from a cosmic accident. Our story revolves around four exceptional individuals from different nations who were forever changed by their encounter with the Omaticaya and Arusian technology. Ty Lee from the Fire Nation, Toph Beifong from the Earth Kingdom, Katara from the Southern Water Tribe, and Azula, the Fire Nation princess. Azula, with her insatiable thirst for power, decided to lead the group on a space expedition to harness the Omaticaya's power. However, during the journey, their spacecraft was bombarded by cosmic rays, fundamentally altering their genetic makeup and bestowing upon them extraordinary new abilities. Ty Lee, once renowned for her acrobatic agility and chi-blocking techniques, was now endowed with the power of elasticity, able to stretch and manipulate her body in unimaginable ways. As a result, she took on the moniker of "Ms. Fantastic". Katara, the master waterbender and heart of their quartet, was bestowed the power of invisibility and force field creation. Her calm and caring personality had now added dimensions, earning her the name "Invisible Woman". Azula's newfound power was a perfect match for her fiery spirit. Her ability to create, control, and absorb fire made her even more formidable. Consequently, she was named "The Human Torch" due to her powerful and heat-based abilities. Toph, the earthbender who redefined strength and resilience, was transformed into a superhuman behemoth with rock-like skin and unmatched physical strength. Taking pride in her changed form, she embraced her new nickname, "The Thing". Upon their return to their world, they employed their newfound powers, transforming from four powerful benders into an unstoppable team, the "Fantastic Four". Despite their remarkable abilities, they still faced internal struggles. Azula's thirst for power, Ty Lee's struggles with her new form, Toph's hardened exterior hiding her insecurities, and Katara's struggle to keep them united in spite of their differences. Their journey was just as much about managing their powers as it was about managing their personal battles. Their ensuing adventures were filled with many battles and choices. They faced off against powerful individuals corrupted by Omaticaya and Arusian technology, warding off attempts to disrupt the peace and balance of their world. Through all the trials and tribulations, the Fantastic Four exemplified the power of unity, empathy, and understanding, proving that they were much stronger together than apart. Their love for their home and its inhabitants outweighed their personal vendettas, underlining the true essence of their team - a fantastic unity of four exceptional individuals. Thus, in this alternate Avatar Universe, the Fantastic Four made their mark, leaving legacies written in stone and fire, in water and cosmos, proving that no matter where in the universe they were, they would find a way to protect their home.