I was just bored and The Lamia gave me a idea of a demon that should be added.
Banshee She is a demon or spirit that is all white with piercing red eyes.

Info:A banshee Modern Irish bean sí, from Old Irish: ban síde, pronounced, "woman of the fairy mound" or "fairy woman" is a female spirit in Irish mythology who heralds the death of a family member, usually by shrieking or keening. Her name is connected to the mythologically-important tumuli or "mounds" that dot the Irish countryside, which are known as síde (singular síd) in Old Irish.

I Just figured a Banshee would be cool along with the Cerberus.

Edit:Also maybe when you encounter her in explore this message will show up "You notice a white Lady with the brightest eyes Making loud Crying(or Shrieking noises) You decide to walk away from her uneasy of the way she look's." So she will not be able to fight with. Kinda like the FurFur idea she isn't able to fight with.

Edit:Small fact a banshee warns other's of potential death of other's by Screaming or Crying out loud to the person (since this is a lion game it would be king/lion.) about their upcoming death or somebody else's death.