Board Thread:False Info and Speculative Discussion/@comment-4815136-20140817115322/@comment-94.215.23.200-20140902145802

If you don't want to use the word magic, that is fine, but this show is fairly obviously about the supernatural. There is no point in denying that.

As for the original question, a Banshee is clearly different from most other beings (shifters), we've seen on the show. So that explains that rules applying to shifters don't have to apply to her.