With the second stage of the Wano Arc well under way, I believe it's a good time for some theorycrafting on how Luffy will defeat the big, bad lizard known as Kaido. I will be listing down key techniques, abilities, and strategies that Luffy might use in the main fight, which include ones that Luffy already has but hasn't revealed yet, ones that Luffy might learn/invent/awaken before and during the fight, and ones that involve other people. Take note that not all ideas are originally mine, and there are some that I've adopted from other theorists. Also, each technique, ability, and strategy isn't necessarily the one that will primarily take down Kaido, so let's leave them aside for Oda to orchestrate. Gear Fourth G4 is currently Luffy's go-to, serious-mode ability. So far, we only know three of its forms, namely Boundman, Tankman, and Snakeman. Like a lot of other people, I believe there is at least one more form that Luffy has in store, as well as several other moves to go along with it. First off, how does G4 and its forms even operate? According to one theorist, G4's latter forms are actually adaptations that focus and enhance one of Boundman's unique capabilities (the guy mentioned four, but I only adopted three). These capabilities are: Spring-like Muscle Contraction Elastic and Steel-like Armor/Defense Python Technique Among these three, two have already been featured in their own forms: Elastic Armor in Tankman, and Python in Snakeman. Of course, Tankman was revealed in a sub-form called "Manpuku Version", which seems to showcase his maximum defense. With this, I would then guess the default version of Tankman to be of similar concept, but with a smaller structure and a means to actually move around. Now, seeing as Luffy was actually one-shot by Kaido while in Boundman form, Tankman might possibly be an effective countermeasure to the Yonko's brute strength, and could also penetrate his superior defense. Penetrate Kaido's defense? How? Simply put, Tankman is able to absorb his opponent's attacks and return them with increased power. Of course, Luffy still needs to endure the attack and not faint like last time, so it's up to him to improve his Armament Haki. Also, correct me if I'm wrong, but I believe there hasn't been any mention of Kaido actually utilizing his own full strength in trying to kill himself. So this leaves open the possibility and idea that the Strongest Creature in the World can only be "defeated" by itself. What if Kaido works around it? Like doing a quick hit-and-run or using long-ranged attacks? This is where Tankman's default version comes in. If my theory above turns out to be true, Luffy should then be able to absorb attacks and also fly around. Just imagine a huge ball with four mini-thrusters. Luffy could also explosively release a portion of the absorbed power through the thrusters in order to up his travel speed. Tankman aside, there's still the fourth G4 form. And what remains of Boundman's unique capabilities is the enhanced muscle contraction. So the new form focuses on that. But before describing how it works, here's a vital observation of the forms so far. Boundman is a balanced form that has moderate levels of power, defense, and speed. Snakeman is a form that sacrifices defense in exchange for speed and power, primarily the former. Tankman (again, assuming my theory above is true) is a form that sacrifices power in exchange for defense and speed, primarily the former. So what's left for the new form? The new form will then be sacrificing speed in exchange for power and defense, primarily the former. Personally dubbed as "Kong Man" by yours truly, the new form will mostly be using the spring-like muscle contraction in some sort of way that's, of course, different from Boundman's. Obviously, it should effectively up Luffy's attack power, but at the same time, it should also utilize whatever method used to also improve his defensive capability. Lastly, along with the gains, the form should also restrict Luffy's speed while in it, in order to achieve a balance in all four forms. - - - - - - New Gears For me, I think there's only room for two more Gears in Luffy's arsenal, and they're both not numbered. One he could choose to learn/invent before the fight with Kaido, and the other he could awaken in the later portions of the fight. First off is... Spoiler: New Gears Please wait for Part 2. In the meantime, let's discuss! What do you guys think?