I think the Larian writers are playing a little loose with the title stuff. They probably put it in as a title meaning "leader," thinking it designates a "level of achievement" as opposed to a "level." Just my opinion, of course, but that's what I suspect.

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Maybe I'm wrong, but is that Nettie dialogue the same now? I think it may be slightly different, without the archdruid reference. Again, I could be wrong. I'll try to check a little later when I have some time to load the game.