Just throwing my inretest in here for now. I've read the first page of this thread but haven't read the rest yet. I'll try to get an application up soon.

My initial idea is to be an NPC created by one of the players. An Angel of Law who is essentially a robot/automaton/mecha, whose lawful good nature gets to totalitarian levels of "for the greater good" and "Order above All". Someone with a real stick up their a** and zero-tolerance for what they perceive as evil. They manipulate the universal law, the Law of Universal Gravitation, as their magic of choice, using it to suppress, condemn, and imprison. They see them self as judge, jury, and executioner. Sees the player characters as gods, and therefore, infallible.

Despite being 'good', can really cause trouble when interacting with the world at large