Nah, I don't mean beating it during the move. I mean, you do Hotaru, they block it, and they can basically punish it which normally doesn't happen. But we found a way with Tager. It was funny since nobody ever got that far into what kind of things can happen afterwards so all Hakus and Tagers just treat it as perfectly safe even though he could basically punish it like Inferno Divider. I watched Alzarath playing with his Haku at a major against my brother and getting blown up after getting his Hotaru blocked too since he didn't know the Hotaru punish was coming.
Can't remember anymore though... I can't believe I'm forgetting. But basically, if you did Hotaru, you had to gamble that you were gonna catch some mashing or button pressing, and not having it blocked.
I think it was something simple, like, you block Hotaru, and then wait to see if Haku jump cancels. If he jump cancels, AC will beat every single thing he can do. If he doesn't jump cancel, he falls into a 360 or 720 and can't do anything about it either.