While she does have a name, in this universe she is known as The Librarian of Creation. The Mother of Enternity. A Hand of Creation. In history, she was Athena, Pallas Athene, Miranda, Minerva, among many other names (though some just call her Mother), and her origins are not what you have been reading in your history books. She was never "born" in the traditional sense as, according to legend, she sprang forth from the head of Zeus, fully formed and clothed in armor and is Zeus's favorite child. That is pretty close. The truth is much more of a romantic story.
When Earth-3175 was split from the main timeline, Merlyn Emrys was The Hand of Creation of this new universe and he wanted to make sure those he cared about were around to enjoy this new world. So when he traveled through time to change this timeline and make it his own, he brought his wife back to life. With intense concentration and using his vast mental powers, Merlyn Emrys resurrected his wife with just a thought, thereby creating Athena, goddess of wisdom and praised for her compassion and generosity, patron of the arts and crafts, embodiment of knowledge and rational thought. Thus Merlyn Emrys became the Zeus of legend and his favorite creation was not his daughter, though he did "create" her, but his wife.
However, knowing that the two of them could never be together, Merlyn Emrys made slight changes in order to set her apart and to never have to bare losing her again. Instead of brown eyes he gave her gray. He gave her an aura of respect and reverence so no man, or woman, could ever hurt her physically, sexually or emotionally but would instead protect and love her. And then he granted her immortality so that she may always grow in knowledge and never fear death again.
She is one of two Hands of Creation of this new universe, under the guidance of That Which Abides, the True Source. Merlyn Emrys, as the second Hand of Creation, is partner in the creation of the multiverse of Earth-3175.
According to Magnus der Dämonenkopf, The Librarian is a living repository of human knowledge. Her memory is so complete and all-encompassing, she has instant recall of anything ever written whether it was published or not, including private diaries, lost books/scrolls and the entire lost Great Library of Alexandria...which is not really lost, just moved (but shh...don't tell anyone).
Mother can literally do anything. Unlike Merlyn Emrys, she has no restrictions.
Mother exists as one entity across all universes throughout the past, present, and future. This allows her to live in all these universes simultaneously. She has often been in multiple times and locations at the same time.
The Librarian knows all that is happening within this universe. She perceives time in a non-linear fashion. This means that she sees the past, present, and the future simultaneously. She can multi-task and interact with information at a multitude of levels.
Everything: So far there does not appear to be anything that The Librarian cannot do.
Cosmetic Changes: The Librarian likes to change her hair color, which she can do at will. One thing she cannot change, though, is her eye color.
Reincarnated Memories: The Librarian knows that she is the "reincarnation" of the wife of Merlyn Emrys, but she has no memory of dying and only remembers closing her eyes in one life and waking up in this one.
Voice: If the Amalgam Universe 2.0 were to become a cartoon, the voice of The Librarian of Creation should be Katie Mixon Greer.