Equal parts brilliant and controversial, scientist Moira O'Deorain is on the cutting edge of genetic engineering, searching for a way to rewrite the fundamental building blocks of life. Over a decade ago, O'Deorain made waves when she published a controversial paper detailing a methodology for creating custom genetic programs that could alter DNA at a cellular level. It seemed like a promising step toward overcoming diseases and disorders and maximizing human potential. Dissent among her peers soon followed. Many considered her work to be dangerous because of its perceived ethical shortfalls, and O'Deorain was even accused of having the same unchecked desire for scientific advancement that some believed had caused the Omnic Crisis. In addition, other geneticists were unable to reproduce the results of Moira's research, which further called her discoveries into question. Instead of kickstarting her career, her paper seriously damaged her reputation. She received a lifeline in an offer from an unlikely source: Overwatch's covert ops division, Blackwatch. She continued her work in the shadows while developing new weapons and technologies for the organization. Her employment was a closely kept secret, until it was uncovered during inquiries following the Venice incident. Many high-ranking Overwatch officials disavowed all knowledge of her affiliation with them. After Overwatch was disbanded, O'Deorain was forced to turn to unconventional sources of funding. This time, she was invited to join the scientific collective that had founded the city of Oasis. Yet some have whispered that the shadowy Talon organization had already been supporting her for years, aiding her experiments in exchange for utilizing the results for their own purposes. Though O'Deorain will go to any lengths to make scientific breakthroughs, her work is still unknown to most of the world. But now that she has been freed from all constraints, it is only a matter of time before everything changes.


Biotic Grasp: one hand fires a biotic spray that heals allies, and the others leeches life from enemies

Biotic Orb: she can launch an orb that bounces of walls, yellow orbs heal allies, purple orbs harm enemies

Fade: temporarily become intangible and invisible, and reapers in a near by location

Coalescence: fires a beam that heals allies and harms enemies, cannot activate of abilities, has a long charge


Moira excels at fighting indoors, with her biotic orb acting as her second. she can heal multiple allies, including herself, at once. if you fight her in the out doors, and deal enough damage to overtax the leach life, you can kill her.

Where does she fit

  1. Medic
  2. Melee Specialist
  3. Tactician