Jennifer Huntingdon-Smythe
A member of the Royal Medical Corp in a world very similar to our world she was deployed to a god-forsaken part of the world and came to discover that 'magic' or 'super powers' are real. It was a life changing experience for her, and she devoted her life to understanding it.
Many centuries later she 'ascended'. In the multiverse there are Runes. Each Rune is the 'essence' of what a thing means. There is the Rune of Life, the Rune of Death, the Rune of light... Jennifer became the Rune of Life: an immortal spirit that 'is' what it means to be alive. With power over all life.
Life is not all rainbows and butterflies. Many aspects of life can be best described as 'Nature Red In Tooth and Claw'. As the essence of Life, Jennifer embraces all of these... but in her heart she is a Doctor and a Mother. A creator of life not a destroyer
When she needs to communicate with mortals she usually creates an Avatar which is 'her before she transcended'. An impossibly beautiful female form who can talk with Kings or Peasants as the need arrives.