I was actually thinking that Xir'ain would be the best match for him. Darkness wouldn't be an issue and the eels would probably be the ones getting eaten, if anything.

Edit: BBeast, in my next posts I intend to have Shaige fly around and see Paterdomus himself. Should I just make it (and it's religious institution, particularly) as I see fit, or did you already have something envisioned? I was going to make them have a theocratic system with worship of fire and water, similar to Zoroastrianism.