This Azumarill is a water-type Pokémon owned by Trixie.
Azumarill is a star of Trixie's show, and uses Water Gun to juggle objects. However, after she fell in love with Trixie's Golduck, she does not obey much as she should. Team Rocket captured her, but she did not obey them, so they locked her, Pikachu and Totodile in cages. The heroes came and saved them, though Azumarill ignored Ash's Totodile and hugged Golduck instead.