User blog comment:U.V.I.R/All Might on steroids?/@comment-36459780-20180804080709

I always thought maybe it was just the variation of the quirk One For All that All Might has, it could also be because Deku isn't using One For All at his max potential maybe he will become the same, but then that leaves the question why Nana didn't look that way when she held One For All.