Moranna

Moranna, also called the Frostmaiden, is seemingly some sort of deity of elemental ice, first mentioned by Avaritio after Group Alpha freed him from his prison.
They stumbled upon a Cathedral built in her honor, which held both a statue depicting her, as well as a magical bow, which Nathaniel Lightheart took. Moranna seemed to be somehow trapped within the bow, speaking telepathically to Nathaniel once he attuned to it.
Moranna has a cold personality, speaking in whispered tones and yearning to freeze her wielders foes. It is unknown if it is possible to free her, or if she even wants to leave her current state.