Elissa

Elissa is the resident mage of Serpent's Fang, and met the Avatar during the quest to recover the Silver Seed.

She appeared to be a proficient magic-user and merchant when the Avatar met her in her laboratory. She was more than happy to sell the Avatar several spells for gold coins. She also offered the Avatar magical training for a price, which made her the only magic trainer in the game. Despite the excellent results, She revealed during training that she wasn't a natural teacher.

It has been speculated that Petra is the Automaton reincarnation of Elissa, as they both appear very similar. If this is the case, she doesn't indicate any memory of her former life during the War of Imbalance.