Lyxen
Great Old One
It works really well for games, and it was certainly Gygax' views, although I think they were heavily influenced by Moorcock's writing on the cosmic balance, which has already its own servants and actually city (Maybe a precursor to Sigil ?).If I recall correctly, that's essentially what Gygax had Mordenkainen's view being back in the "original" Greyhawk campaign. It's been brought out in a few of the supplements.
Of course, that's not how good and evil work - but it's a game so maybe they do!
And it was developped in Gygax' books as well, in which Gord becomes an agent for balance, although because evil is so much stronger than good in the situation, it mostly aligns itself with good, although it can also employ more sneaky and debatable means of action.
The books are not that well written, but there are interesting things in there, in particular for fans of G1-3/D1-3, there are a few NPCs that you might recognise.
