Magic leaving the land - 80/90's animated children's fantasy movie
I seem to recall an important plot element being magic leaving the land; this being the reason a mentor character needs the hero's help. The override theme I recall is of things changing. Perhaps with the character using what power is left to get rid of the bad guys. (but I'm really stretching here).
I *do* remember a mill or water wheel.
I remember scenes of locusts or dragonflys.
I think the movie had something to do with dragons, possibly about them leaving as well, but I don't think they were a major plot element... perhaps this is one of those magic leaves and technology takes over themes; but I DO remember this as an animated *fantasy* movie.
I think I remember something like a coming of age theme.
I don't think this was a Dungeons & Dragons TV episode; I seem to recall a more mature plot and theme, longer story, but something of the dungeon master character counseling someone. Similarly the Pagemaster comes to mind; but I don't recall the funny animated things.
I think my recollection of the animation suggested between 83-95, but I don't have a lot of confidence in that guess. Any help would be appreciated.