AZ (Sparks)

AZ is the former king of the Kalos region and the creator of the ultimate weapon. In Sparks is revealed to be one of Mason's ancestors.

Prior to Sparks
Over 3,000 years prior to Sparks, there once was a man who had a Pokémon he loved very much. A war broke out in Kalos, and that Pokémon went to fight in the war, where it was killed. The man received the body of his beloved Pokémon some time later, and out of unspeakable grief, he built a giant device to restore it to life. He succeeded, but he was unable to overcome his despair and turned the machine into a weapon, with which he destroyed both sides of the war to bring it to an end. His Pokémon, disgusted with the fact that the machine was powered by the life energy of other Pokémon, left him.

Sparks: Inidgo League
AZ was seen watching Mason leaving Kalos with Absol.

Sparks: XYZ
AZ was first mentioned by Mason in Geosenge Town after explaining the Ultimate Weapon's origin. Here Katrina and Clarissa also met Lysandre but Mason prevented him from getting closer. AZ was seen in person after a long absence when Mason was stuck in Lysandre Labs. AZ recognized him and explained who he was. While Mason didn't believe him at first, he saw the color of his eyes, red, and knew that it was a sign of the bloodline of Kalos Kings. The two came together and helped free Kalos and defeat Lysandre once and for all. Afterwards AZ told Mason he was dying and gave him the Key to The Ulimtate Weapon. He told Mason that it had a Key Stone in it and gave him Floette's Poké Ball.