"Kong Gun!"
In Gear Fourth, Luffy launched himself straight into the sky, his massive fist driving downward with the crushing weight and ferocious force of a cannonball. His frenzied fist pummeled Kaido's dragon form again and again, rocking the serpentine body with its tremendous power.
Having evolved beforehand, Luffy's attacks were no longer mere tickles. Having mastered advanced Armament Haki, Luffy assaulted Kaido directly from within. Even Kaido felt a searing agony as fresh blood spewed from his massive dragon jaws.
Chapter 256