Selina once was a stunning siren with the most majestic voice. That was over 50 years ago though but she still persist to have here own kind of fun. As a simple class 4 she normally would just be another ghost in the crowd, but she is in possession of a Moonstone of the Gods. Not only does it amplify her powers but it also is a key tool in stopping the coming apocalypse, not that she would give it up to anyone in the first place. As a siren she can use her songs to influence those around her to do pretty much anything she wants, alternatively she can also use it as a weapon in the form of a ear splitting shriek.