Sonora is one of Ayden's Pokémon currently residing at Ayden's home in Phenac City. She is also the mate of Ingrid's Umberon, Nocturne.
Much like Zatara, Sonora possesses strong psychic abilities and specializes in ranged attacks. Though she can easily hold her own in battle, she prefers teaming up with her mate, Nocturne. In double battles, she will often bolster their overall defenses before providing support for Nocturne. During battles, she displays maturity and grace and does not like being physically struck in battle.
During Ayden's time in Vermillion City, she obtained a young, female Eevee. Though she was tempted to use a stone to evolve her, she refrained from doing so and decided to let the evolution be natural rather than forced. This proved to pay off as Sonora evolved into an Espeon. She also became the mate of Ingrid's Umbreon Nocturne.