Lady Luck

Fortune was a woman of an undiscernible race when Phrixus was still roaming the plane as a mortal. She was the embodiment of luck. Always in the right place at the right time, could pick up any weapon and wield it with deadly efficiency, and was never sick. A plague swept through her own home and killed off everyone but her - she remained hale and healthy.
  News swept through of her and Phrixus sought her out. There would be history between the two of them, but ultimately, when he ascended, he consumed her 'gift' and brought her with him to his home plane Valiance. She is now 'a part' of him.