Latias

Latias is a legendary Pokémon from ''Jaden's Adventures of Pokemon Heroes. ''She and her brother Latios lived in a Secret Garden where they guarded the Soul Dew. Latias has the ability to transfrom her appearance into other people. When two girls named Annie and Oakley attempted to capture her, Ash and Jaden saved her, and Latias came to trust and like Ash for it. After having fun with Latios and Latias, that night, Annie and Oakley snuck in and captured Latios and stole the Soul Dew in order to activate Defense Mechanism of Alto Mare. Latias went to Ash, Jaden and his team for help, and managed to save Latios. But when Alto Mare soon became in the threat of a tsunami, Latias watched as her brother sacrificed himself to save Alto Mare, and turned into the new Soul Dew, just like their father in the past.

Trivia

 * Latias may harbor a crush on Ash.