Thread:Paul.rea/@comment-4280498-20150603184713/@comment-4091815-20150607153954

Those "other things" were exclusively humans and werewolves. We know Lydia is not either one of those things - you can't draw a conclusion from that situation alone.

You can't say - "nothing supernatural can't hurt a Banshee" or "All Banshees are immune to this or that" based on the experience of a single individual.

We'll need something presented to us - either on screen or via the dialog - that unquestionably states that Banshee's are immune to other supernatural threats.