Board Thread:Speculation House/@comment-24278127-20131211040442/@comment-16502426-20131213093449

I think that semblances are like fingerprints. Many people have "arches", "loops", "whorls", etc., and some types are more common than others. But every one is still unique.

For instance I highly doubt there is nobody else on the planet with a polarity semblance. I get the feeling it is a relatively rare and powerful one, given the others' reactions and the fact that Pyrrha has had so much success, but she still is likely not the only one. However, her semblance is still unique in exactly how it is, even if some other might be nearly indestinguishable.