Board Thread:Legitimate Canon Questions/@comment-26742635-20150721085855/@comment-24544305-20150722190714

but she is not even human because human don't possess supernatural abilities. And even the Druids are not completely human, because it was said that in the past Druids knew how to shapeshift (in fact they taught Lycanon how to change shape from human to wolf and back again afterZeus's curse ). Jeff described Mountain ash as magic but magic was never named on the show in a serious way or deepened. Just because Deaton said something, it's not a law. Maybe in his experience the supernatural creatures are blocked by the mountain ash, but it's not necessarily so. Also because he does not have all the knowledge of the supernatural.