This has everything to do with Serena’s goals and motivation. Serena realized her passion for performing through hard work and failure. It was a long, harrowing journey for her to find her inspiration. As such, she wants her Pokémon to be as passionate as she is about performance. Serena is a very caring girl, and she only caught the Pokémon she was sure loved to perform. She shares her motivations and goals with her Pokémon, who travel as a team. These leadership skills and loving attitude allow her to keep a small yet highly motivated Pokémon team for her performances.