He learned FS from Katakuri and didn't master it with Kaido (it clearly didn't help with avoiding all of his attacks).
The problem is, you think this means Luffy is now untouchable. Akainu likely can do the se thing. Luffy can likely mess up and get hurt. These things happen.
The problem is, you think this means Luffy is now untouchable. Akainu likely can do the se thing. Luffy can likely mess up and get hurt. These things happen.
Even some advcoc attacks