Scion that is both horse and woman, wielding utter control over the souls that wander the underworld, in opposition to the Martyr Igeyorhm, scion of light. Though she once served the gods as a guardian, when Ultima announced her rebellion, Shemhazai went to her, whispering of the god's hidden weaknesses. She then descended upon the land without leave of the gods, and taught men of destruction and evil. For this was she was stricken down and bound.

Shemhazai joins the party as part of the game's normal storyline. She also wields an all-or-nothing attack, which some tougher enemies and bosses can resist. It's best to save her for lesser enemies and rely on other Espers during difficult battles.