Harizou

Harrison is a character of the day who appeared in Dueling Heroes (EP218).

Harrison was brashly confident that he and his Qwilfish would defeat Misty in the first round of the Whirl Cup, citing his years of experience as a Trainer. However, Misty and her Corsola quickly defeated him and Qwilfish, allowing Misty to advance to the second round.

(Source: Bulbapedia)