Currently skeletons are only obtained by the summoning of necromancers. When we upgrade necromancers skeletons also get upgraded. We don’t have a slot in troop academy for skeletons. I don’t know what do they call such a troop. I suggest to add a special slot for skeletons. And instead of getting upgraded when we upgrade necros, we should upgrade it separately and forge separately. So we can control them how we want. And there should be separate boosts for skeletons.
The only way to obtain a skeleton in a battle is by using necros. So it means it have no morale points. So it cannot be copied with black or spirit morale. And cannot be used in defense directly. And we should replace the knights summoned when a surprise mummy dies or ruthless pharaoh calls, etc… with skeletons. So there can be more uses for it.