San is one of Ayden's Pokémon currently residing at Ayden's home in Phenac City. He was caught in Route 114 of the Hoenn region after defeating his life time rival, a Seviper.
As a Zangoose, San has a strong rivalry with Seviper that goes back ages. This inborn hatred for the species often results in him losing control and savagely fighting the Seviper until one of them is beaten. When a Seviper is near, he will rarely take Ayden's orders. He is particularly proficient in physical attack and speed, often relying on his claws to slash his opponents.
While traveling through Route 114 of the Hoenn region, Ayden encountered San while it was engaged with a Seviper. He had been poisoned and while his ability boosted his attack power, he was slowly succumbing to the poison in his system. Ayden stopped San from pursuing the Seviper and nursed him back to health. After finally defeating the Seviper and reclaiming his territory, he joined Ayden's team.
He was primarily used by Ayden during her time in Hoenn and now currently resides in her home in Phenac City.