Mitsuzou

McCann is a character of the day who appeared in Mastering Current Events!.

McCann is an old man who is better known as the "Air Battle Master", due to his prowess at battling with his Scizor amidst strong winds. He proved this when he was battling his granddaughter and student Maya; he easily defeated her Chimecho. McCann is so respected that Trainers would often request that they could leave their Pokémon with him for training, which he always refused. Upon meeting McCann and having witnessed his battling skills, Ash was eager to defeat the Air Battle Master with Gliscor, who also used winds to fly. However, Gliscor proved to be easily outmatched and was defeated without much trouble.

Later, Ash and Gliscor—although both initially disappointed—challenged McCann again. Although the Air Battle Master once again won the battle, Gliscor very nearly defeated Scizor and also learned Giga Impact due to its determination to win. Both McCann and Scizor were so impressed that Gliscor was offered the chance to stay and train to become another master of the air.

McCann sent Gliscor back to Ash in Working on a Right Move!, just in time for the Lily of the Valley Conference. For unknown reasons, he was simply referred to as the "Air Battle Master" in subsequent episodes, and not by his name.

(Source: Bulbapedia)