Cryomancer
Arcane
Welp, looks like you don't get to bang Nocticula unless you avoid using your Demonic Rage whenever it would benefit you in conversations, and instead take the subservient option most of the time instead. Fuck that. At least I still get to rule Alushinyrra, and once she ascends to godhood I might as well take over all of the Midnight Isles.
Just for fun I tried actually killing her. Cha based 43 fortitude save or be instantly charmed/paralyzed, with no way to avoid it other than beating the roll, while she mows you down with 6+ attacks each dealing 90-120 damage. I think it is truly the smarter choice to not betray her, and not becoming her boytoy either.
Speaking of smart, all these attribute bonuses stacking gets pretty ridiculous at some point.
I recall reading attribute descriptions - may have been in relation to Planescape - where it said "Charisma 20: Your voice can bring a battle of the Blood War to a sudden halt."
Stats like that put you firmly in a league with atropals or Prime Elementals.
2e scale was a little different.
20 charisma in pathfinder is described as: "Life of the party, able to keep people entertained for hours".
Yes. In 2e, anything above 18 is superhuman. Deity avatars tends to have stats in 20s at max 25.