Banshees are Unseelie fae, and act as enforcers, bouncers, and even assassins. Their songs are laced with death curses and hexes. Anyone who hears a banshee song dies. It's only a question of when. Their true form is ghastly, but they can adopt far fairer forms if need be. They usually take Unseelie partners, but they often intermarry with other races.