[@kidjab] I had stated it with the link in the interest to here, and I even put a rule in stating it. Should probably not state it as a 'Mobile Defensive Quirk' if it can be used in more than defense, granted defense itself like shields can still be used as weapons but that digresses. With that kind of example, she probably be extremely at a disadvantage because of two things really.. it would be extremely situational for her to actually get to such speeds, and second is most quirks can pretty much shatter or incinerate concrete fairly easily so the speed she is most likely to actually even get close to reaching in most situations wont be able to defend against much.