She's meant to be a villain - one who is not evil for evil's sake, but rather out of need. Not that any of the victims care!
If she managed to shed energy recently, she's your average moderately sinful moderatly flawed person who can use a little flattery for one's ego, and a little compassion too. After all, in elven terms, Rilei is just a teen.
And yes, she can let her energies drain away only through humans.
As for saving? Perhaps some artifact that can take away a mage's talent and all magical aptitude could be what might cure her, and can be used as a way to tempt her to do one's bidding. Go to Comment
I like the concept of the elven mage who failed to understand her limitations and was transformed into a vortex of destruction, but I was less enthralled by her personality: I imagine that she might find a conscience, even as the pain reduces her to a level of basic survival.
I suspect that most player characters finding her would try to destroy her as soon as they understood what she really was. She might be a hard one to kill, though, as a sort of "magic elemental". Go to Comment
Pretty neat, I like the descriptions of the different civilizations and the relationships between them. I think I like the Mandaans more than the Samman, although I'm not sure why. This would be a nifty planet to drop a malfunctioning ship on, particularly because it would prove... interesting if the Samman found it and claimed it for their Exalted. Go to Comment