AZ

AZ is a character in Pokémon X and Y. Lysandre believes him to be a descendant of the original AZ, who built the Ultimate Weapon, but was far from the truth; he is in fact the very same AZ.

Appearance
Having eternal life, but not eternal youth, AZ has aged well, having long white hair. His expression is usually dark and grim, being haunted by the memory of the travesty he caused in the past. AZ's clothing is a mix between a homeless man's and that of a backpacker; it's highly unlikely he's taken good care of himself in the centuries that have passed. According to the Pokemon website, he is over 9 feet tall.

Biography
3000 years before the start of the story, AZ loved his Floette dearly, but it went off to fight in a great war. A box holding only the flower Floette held was sent back to him, filling AZ with grief. He built a device that restored his Floette back to life at the cost of the lives other Pokemon. However, the pain in his heart had not subsided, leading AZ to reconstruct the device into the Ultimate Weapon, which he used to wipe out many lives and bring the war to an end.

His Floette, having discovered the truth behind it returning to life later left him, unable to see the Trainer it once knew. Feeling regret for what he had done, AZ took to traveling to find Floette to start their relationship over to make amends for his mistake.

In the present day, AZ was captured by Lysandre. He warned him about using the Ultimate Weapon by telling the tale of his own mistake in creating it but was ignored. Luckily, the Player defeated Team Flare and caught the Legendary Pokémon to prevent the Ultimate Weapon from being charged. With that, the weapon sank into the ground, killing everyone in the nearby Team Flare Secret HQ, including Lysandre, never to be seen again.

After the Player is made Kalos Champion and a ceremony is held to honor him/her and his/her friends, AZ challenges the Player to a Pokémon battle. Losing, AZ regains the heart he once had, leading to Floette returning to him.

Trivia

 * AZ is the tallest human that has appeared in the entire game series.