I like the idea of the shadow skeletons. They're pretty neat and a nice addition to graveyards. However I think things get a little out of hand sometimes with how many there are. And the fact that almost no status ailments work on it is another thing.

Not asking anything drastic, just that they be essentially turned into a monster version of the gran faust. Basically, where they can curse themselves. This works out well because of the fact that they're invincible. I think this would not only be neat by take some of the unfairness that can come when there are 3 or 4 of them constantly chasing after you. Gives you more breathing room.