I'm liking what I hear from the encyclopedia about the Raiju. They are electric demons born of lightning that came bring lucid and psychic dreams, which I seem to need more of (considering my lack of good sleep for one factor). I find the bit about sleeping in their owner's navel a bit creepy and fetish-like, but I can handle it if one could bring me such joy.

P.S. I know this isn't mentioned, but since they are electric, can they help one with electrokinesis?

I'm new to spirit keeping (especially to dark arts) but I've been doing psionics for a few years... I'm curious about this as well.