Board Thread:False Info and Speculative Discussion/@comment-4815136-20140817115322/@comment-4091815-20140902075603

the words are not interchangeable no matter how much you wish they were.

Werewolves are what they are because of their biology. Their biology precludes them handling certain substances or crossing barriers made of certain substances.

Druids are what they are because of their training - the substances they use may seem like magic.

Banshees are what they are because of their biology but can use the same substances as Druids.

Banshee's can touch mountain ash and can create barriers just like druids as Lydia showed in Time of Death when she scooped up a bunch and threw it at the front of the boat house. It landed in a perfect line and competed the mountain ash circuit that included the building and everything inside.