Yasuji

Delaney is a character of the day who appeared in Outrageous Fortunes (EP249).

Delaney was on a winning streak and became increasingly arrogant as a result. He defeated Mason and later Misty in battles to earn himself his seventh and eighth consecutive victories. Ash was his next opponent, though Brock ordered the match to end in a draw to avoid overextending the Pokémon. Delaney was irritated at first, but he admitted that Ash and his Bayleef put up a good fight.

Later, Delaney was approached by Jessie, who posed as a successful fortune teller. He was skeptical at first, but after hearing James and Meowth's fake recommendation, he decided to hear her out. Jessie looked into her crystal ball and suggested Delaney's Poliwrath was possessed by evil. She then offered to help cleanse Poliwrath, and Delaney accepted her offer. By the time he realized the fortune-telling stall was a scam, it was too late, and Team Rocket had already escaped with Poliwrath.

His shouts alerted Ash and his friends, and together, they chased down the trio. Misty's Corsola helped free Poliwrath from Team Rocket's control device. Afterwards, Poliwrath defeated Team Rocket alongside Misty's newly evolved Politoed, as well as Ash's Phanpy and Pikachu.

(Source: Bulbapedia)