AZ

エーゼット

3,000 years before the events of Pokémon X and Y, a war erupted in Kalos. This prolonged conflict dragged on, resulting in many deaths. People treated Pokémon with special powers as mere tools in their struggle, so they gathered numerous Pokémon, including those with unique abilities. To secure victory, soldiers believed they needed even more powerful Pokémon. AZ loved his Floette, which he had received from his late mother, but soldiers forcefully took it from him, and it became just another sacrifice in the war.
AZ received the body of his beloved Pokémon several years later, and out of unspeakable grief, he built a machine to restore it to life. This machine was powered by the energy of XerneasX/YveltalY/bothZA. He succeeded, but unable to overcome his despair, he turned the machine into the ultimate weapon, with which he destroyed both sides of the conflict, ending the war. His Floette, disgusted by the fact that the machine was powered by the life energy of other Pokémon, left him. Due to his exposure to the ultimate weapon, his lifespan was extended, and he gained an incredible height.