Scion that is both horse and woman, wielding utter control over the souls that wander the underworld, in opposition to the Martyr Igeyorlm, scion of light. Though she once served the gods as a guardian, when Ultima announced her rebellion, Shemhazai went to her, whispering of the gods' hidden weaknesses. She then descended upon the land without leave of the gods, and taught men of destruction and evil. For this was she stricken down and bound.
Having Shell in this battle helps greatly. Shemhazai has a random elemental weakness, thus it is advised to use non-elemental weapons. At the beginning of the battle, Shemhazai likes to cast Silencega or Silence, or use Syphon to drain MP away. By luck, one can squeeze in a Dispel before being inflicted by Silence.
Shemhazai's attacks consist of magick and standard attacks, but her standard attacks have a high chance of inflicting Disease and Silence. Shell can be used to reduce the rate of being inflicted with statuses. She also likes to use Shock and Flare.
Shemhazai uses Syphon, which drains about 20 - 30% of a character's MP. When her health depletes about 40%, Shemhazai will ready Chain-Magick, which cancels her magick charge time. During this time, she likes to blast high-level Black Magick spells.
If the player has a low enough level character, the Accuracy underflow bug can be used to continuously inflict Immobilize on her, making the battle trivial.