I think the lesson learned here is I should probably know my limitations, and epic level demons/gods/devils is probably too much to try to do since I a) never play PCs at that high level and b) am not super familiar with the lore behind each on
Well, except Zuggtmoy, I did DM her once when I ran T1-4. But she has her own challenges as I mentioned above. Lancelot seems more knowledgeable and thus was able to pick things out really quickly that didn't make sense. So I think I'll stick to the non-epic, non-unique monsters
Well that ruins my plan to request of Urt the Megalith... ;o)