SilverWolfAngel, it's possible for your character to not know their semblance and it might also be possible that they don't have one because certain characters in the show don't have one either. That said, it'd probably be best if you did have one and judging by your character's weapons, I think a massive speed boost kind of semblance (kind of like Ruby's) might be a good idea. If not, you could have one to do with wolves or other physical boost or something.