From the heart of a dying star, the Obsidian Siren emerges, a guardian of cosmic hoards. Her voice, a melody of pure darkness, can shatter nebulae and lull lesser beings into an eternal slumber. Clad in armor forged from the shadows of forgotten galaxies, she wields a rapier that drips with the heat of a thousand suns. Small, ember-like sprites dance around her, remnants of the stars she has consumed, fueling her menacing presence. Her gaze, filled with an ancient sloth, belies the explosive fury she unleashes upon any who dare trespass upon her celestial domain.