User blog comment:FTWinchester/Holy Terror/@comment-11331875-20131204113750/@comment-1509826-20131205180930

Actually, that was never stated, about the graces I mean. Back in season four they described it as if it was an Angels power, not there essence. I agree it odd that its never been brought up before, but maybe angels can't have more than one grace at a time, so no angel could take one save an angel who had already lost his. And whose to say wearing another angels grace really works that well, it might turn on you, like an organ transplent when your body regects the tissue. Or perhaphs it so evil no angel has wanted to attempt it, and the ones that are that evil had no need to attempt it. After all what would Raphael gain from stealing there graces that killing them wouldn't achieve. But I agree it was a daft idea, unless the make it so it doesn't work as well as implied. Mind you I'm glad that Castiel's back, as his humanity track was going to nowhere.

I agree killing Kevin achieved little, but then it does make Dean more alone, from what I heard he's going to be going somewhere very dark this season, so perhaps Kevin's Death is what they added to push him over the edge.