A very useful superpower if you ever end up in a dark space! Better than what I have, which is virtually nothing.

[ And yet she can't really will herself to be all that jealous. She's been an outcast most of her life, no need to give people another reason for people to think she's a freak. ]

And who knows? It could be the first symptom of even greater superpowers. I still think you should check for venom. In a non-lethal way, of course! Maybe study some saliva under a microscope.