Infokita - Whole Cake Arc is nearing the end of the story. The Sanji cake is also finished and ready to be served after Big Mom goes berserk and chases Jinbei et al. In addition to the Big Mom scene there is one more interesting scene of course the fight between the captain as well as the main character Luffy vs Commander Strongest of Big Mom who is also the largest Bounty owner that is 1M named Katakuri.
At the start against Katakuri, the captain had a hard time reaching the power level of the Katakuri essence which had a remarkable Haki observation as it could see little in the future. Luffy who feels overwhelmed do not stay still and continue looking for ways to beat Katakuri until he remembers the time to practice with Silver Rayleigh as quoted from otaku-indonesia
In a fight between two men who have similarities from the way of fighting. Creating Luffy's attack as imitated by Katakuri is actually fighting style is the same as Luffy.
Despite being overwhelmed and seriously injured, Luffy finally endeavoring to read the attack from Katakuri finally slowly able to arouse Haki's ability to observe to a higher level that is seeing little in the future.
Katakuri also admitted that Luffy's current strength continues to grow and approaching his level even fear Katakuri can be realized that Luffy will trouble Big Mom in the future. The rise or rise of this observation or obeservation as the capital to the Wanokuni Arc called by Oda would be more devastating than the war at Marineford 2 years ago (the one piece world).