>>49847108Nah AZ was the Kalosian King from the war 3,000 years ago. He lives for so long due to the eternal life gifted by the Fleur Cannon which his Floette also got.
The thing I'm still not entirely sure about his lore is, did the Cannon drain the life energy from the Pokemon that became the stones of Route 10 to give Floette and AZ eternal life or did AZ turn the cannon into a weapon afterwards as a separate action.
