Thread:ATeenWolfFan/@comment-5379216-20160206011422/@comment-5379216-20160206021351

ATeenWolfFan wrote:

The banshee part is canon because lydia could handle mountain ash and Deaton said himself, nothing supernatural can handle it. Therefor, Lydia is not supernatural. There could've been an exceptions to the mountain ash rule. Maybe Deaton didn't want to specify that some supernatural creatures are able to do that. Banshees were mentioned as supernatural multiple times and by multiple people throughout season 4.