[color:"orange"]I was wondering if it was a bug or not[/color]

It is not a bug, but there should be some kind of warning when you learn a skill that can not be unlearned.


[color:"orange"]the summons barely did any damage and they just died[/color]

Did you distribute their stat points after boosting their levels? One person posted awhile ago that they got the skeleton doll up to level 16 in act 1, and it was doing very well.