Maybe some less polarized angelsvand demons? From what I've read they are respectively always lawful goodvand always chaotic evil. I don't mind these tropes on their own but am worried they will make the background conflict entirely black and white. Maybe expand on the chimeras or introduce some moral ambiguity to the conflict? For example I could easily see a high-ranking angel resort to evil acts for the greater good.

On the subject of rules, I place great importancr on magic A being magic A. That meaning magic users should be consistent in what they can and cannot do. (Example: a necromancer can interact with the dead but holds no sway over the living). On a more OOC level I'm in favor for a soft posting order. Some organization helps, but it is always in the interest of the group to be able to skip over people's turns if they're taking too long.

I can't think of a title off the top of my head. But please just don't make it a cliche deluxe level title.