Well it's currently called MegaMod 3.10: Mazzy Romance, Clara NPC, Darkside Anomen, Flying Aerie, For The Evil, & more! (DONE), as it says in the thread title: https://forums.beamdog.com/discussion/71473/megamod-3-10-mazzy-romance-clara-npc-darkside-anomen-flying-aerie-for-the-evil-more-done/p1
It is indeed a collection of whatever random stuff we decided to write and code; it started off as a Mazzy mod. As we added other projects we thought about breaking it up into various individual mods, but decided that created even more problems with coding and compatibility, so instead it's all one giant thing. As a general rule the people who hate one part of the mod tend to hate many parts, and vice versa, so it's mostly worked out fine.
Anyway, sorry to here that the WeatherMistress is being a pain yet again. It was one of the first things we coded and we've gone back and bug-fixed a number of times. The priest is indeed supposed to have the necklace when you kill him, but it's all done rather shakily, so I'm not overly surprised it's not working again.
I'm inclined to just fix it by deleting various parts of it. It was one of the first Mazzy things we coded and a lot of the early stuff we did was rather pointless and just caused problems (as opposed to the later-coded intentionally-pointless parts that I'm rather proud of ).
Apologies for the double-post above. I did that, then remembered I actually have an account here and logged in.