User blog comment:Fimber/Crazy things that would make sense... or so.../@comment-5674726-20131212001124/@comment-5102537-20131213123027

"Maybe bringing people back from the dead warps their mind" 

That would be a logical conclusion (by the way, this is well explained on "Supernatural". Ghosts that can't or don't want to leave to either hell or paradise grow mad over the time. The longer they stay in the world of the living, the more they get insane and behave strangely and cruel). Alas, they never mentioned this but instead made clear that this was supposed to be the real Uther.

Yes, indeed, he had magical powers when being a ghost. This alone should have made him wonder... and think about some things. Being a magical being himself but wanting to kill Merlin because he has magic. Nothing in this episode made sense whatsoever. At least Merlin could have pointed that out to him, telling him that he himself uses magic now as a spirit.