Ahohige gave the chapter title :Chapter 790 Heaven and Earth
Via Aohige_AP
As Lucy returns, the crowd goes wild.
Doflamingo laughs at the theatrical entry and says he's barely standing.
But Luffy responds to him telling him so are you
Doflamingo takes the initiative, attacking Luffy with strings. He also sends some to Rebecca, but Law shambles her to safety.
Oh so there you are, says Dofla to Law, and tells him to sit there and watch.
He turns an entire segment of the town into strings with Ever White, and converts them into a thousand "Flap Thread" string arrows.
He attacks Luffy with the arrows (it looks like the arrows make up wings on his arms, and he's flapping them together like a flamingo)
Luffy tries to hold off the attacks with CoA, but it proves too much for him, and some of the arrows pierces, slamming Luffy into a wall.
Doflamingo laughs saying are you sure your haki is all there yet?
Flashback to Luffy's training
Rayleigh laughs at Luffy barely surviving an attack by a beast, and asks him what happened to that Kong Gun that you were so proud of?
Luffy says the beast he fought earlier was even bigger, and his Kong Gun proved ineffective.
Rayleigh tells him Gear 4 wears down your body too much, he should come up with a better solution.