One Piece Episode 729 English Subbed Episode Title:Flame Dragon King! Protect Luffy's Life!.Episode Description:Luffy is left lying helpless on the ground after Gear Fourth wears off, and Doflamingo makes his way toward his fallen opponent. However, Gyats and the Corrida Colosseum gladiators who had originally gone after Doflamingo's bounties arrive to help Luffy, who needs ten minutes to regain his Haki. Gyats' group is ambushed by Jesus Burgess, who is after Luffy's Devil Fruit, but Sabo arrives and battles the pirate. Sabo then combine his new powers with his fighting style to blast him with Burning Dragon Fist: Flame Dragon King. Some of the gladiators go to stall Doflamingo, but the Shichibukai easily overwhelms them.