User blog comment:Kaido King of the Beasts/Chapter 879: Mirror Battle in Mirro-World/@comment-24850639-20170922150027/@comment-3507581-20170923012519

The problem is that the Sanji Retrieval Team was just that, a retrieval team. Luffy thought that with only six people -including himself and Pedro, who is down- would rescue Sanji and leave without much skirmishes, which was proven nothing more than wishful thinking. He should have made good use of his Straw Hat Grand Fleet (although on a second thought, the cover story would never came to be, yikes) and match Big Mom's numbers with them. Plus, remind me WHY would he split his immediate crew in two teams and the other half be sent to Wano.

As for his fight against Katakuri, there's a battle tactic that goes by this verses more or less: "If your opponent is strong physically, don't try to match his strength; if they are fast, don't try keeping in pace with them. Always be like water: adapt to their moves, find the weak points, blindspots, and use them at your advantage." For example: imagine you're going against someone larger than you and bulky enough he can hit hard. What should you do? First, move faster than him, for bigger mass means less speed. Second, read and memorize his move patterns. Third, strike him where his attacks can't protect him. The problem in this particular case? Luffy tried to do the "don'ts" and it doesn't go well. If Gear Fourth, the -definitely- effective Trump Card, proves ineffective, then he should showcase his fighting genius!