ehren37 said:It also breaks the rules FAR too often in a way that would have repercussions if the same abilities were available outside this small area. Invisible gems that cant be detected by see invisible? Unresistable sleep gas poison? Magic that works in anti magic. Why didnt this guy rule the world again?
What rules does it break? Invisible means that you can't see it. A spell that detects invisible doesn't break the rule, but a spell that prevents detecting the invisible does? True, there's no "sidebar" about the spell.
"Repercussions" if the same abilities were available outside of the area presumes that you (the reader) know the conditions under which these things were created. Perhaps there were unique circumstances to why magic would work in the anti-magic that could not just be duplicated any place that you liked.
Of course in 3E anything you see in the dungeon must be the work of a Feat plus X experience points and Y gps. So the assumptions you are making are more natural in that game system, but not at all in 1E IMO. "The guy" probably found his sleep poison gas on some remote plane of the Abyss - he doesn't use it to conquer to the world because he had only one dose of it and used it on his tomb.
Of course how do I make that look like "(Craft Poison Gas, 300 xp, 7500 gp)"? I don't know.