No work? The chapter just said he did workouts and then did training to get ahold of his quirk more. We also don't know how much time has passed since the festival. Could be a whole month. That's plenty of time to get stronger
He has lightning. He gains the ability to move so fast he creates lightning plus what all mights power
Idk. What if this was a ability only he could achieve. I think why they had an electric user come into the room. Is because he us going to train Deku to use his lightning.
