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Okay guys I think we can all agree that Sanji has something up his sleeve that will help him catch up to the insane power we’ve seen Luffy and Zoro display. There have been many theories as to what it is and I’ve had my own theory in my head for about a year so I decided I’d give my two cents.

First I’ll discuss what the technique is:
We’ve seen Oda draw from different mythologies for ideas and my theory has to do with Christian Mythology, specifically the works of Dante and his Inferno. First let’s talk about his current power up.

Diable Jambe is French for Devil leg and involves fire based attacks which makes sense because when you think of the Devil you think of hell and fire. Some of Sanji’s new attacks draw inspiration from this idea and the fact that he just spent 2 years in his own personal hell of Okama land.

So now that that’s been established lets go back to Dante. Anybody who’s ever read Inferno(or seen the Impel Down Arc for that matter) will know that fire and brimstone isn’t all there is to Hell. The lowest level of Hell is actually a frozen wasteland saved for the worst sinners in history. Brutus, Judas, and even Satan himself are imprisoned in ice there.

So fire isn’t the only thing associated with Hell and Satan. You also have ice.
I believe that Sanji unlocked Diable Jambe back at Enies Lobby because he was going through the Hell of losing his friends. Then during the timeskip Sanji descended into another level of Hell(as he had now lost all of his friends and was stranded in the worst possible place he could imagine) and discovered the ability to use a freezing leg to attack.
I believe this new technique would be called Cocyte Jambe, Cocyte is French for Cocytus which is the name of the frozen lake in which Satan is trapped.

Now I’ll discuss the nature of this new power-up.
First is how he’ll activate it
I think the way he would activate it would be similar to how he activates Diable Jambe. He will begin to spin at incredibly high speeds but instead of creating friction for his down leg, he will extend his other leg which will in turn cause his foot to spin much faster because of centrifugal force. This speed will have the wind blowing at it so fast that the air will get colder and his leg will start to freeze over(One Piece physics everybody). This will create an icy shell around his leg which he will attack with.

The advantages of having an icy leg would first be that all of his attacks would be extremely cold and would partially freeze his enemies. Also his leg would now be much harder because it is covered in ice which will add more power to each kick.

Having the option of fire or ice to attack with will give Sanji greater versatility as he may face opponents who can handle the heat but not the cold and vice versa. As far as power goes, on its own it would be just as powerful as Diable. The real power comes when he uses them together. One leg each.

Now you’re probably thinking that if he used them together then it would just even out the temperature and make it less effective. That’s if he used them at the exact same time. Now if he used them back to back with slight intervals, that’s a different story. I’ll explain

The Characteristics of life are as follows:
composed of one or more cells
undergo metabolism
maintain homeostasis
can grow
respond to stimuli
can reproduce
through evolution, adapt to their environment in successive generations

Now pay attention to homeostasis
http://en.m.wikipedia.org/wiki/Homeostasis
If you took the time to read that then good for you, if not, I’ll summarize.
Homeostasis is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples of homeostasis include the regulation of temperature and the balance between acidity and alkalinity. It is a process that maintains the stability of the human body’s internal environment in response to changes in external conditions.

If Sanji were to kick an enemy with a fiery leg and burn him, then before the body can react to the heat he kicks him with a freezing foot and and freezes the burned tissue then that tissue is now much more damaged than it would have been had he just burned it or just freezed it. When you get a burn or frostbite you are supposed to slowly and steadily return that tissue to its proper temperature, when the change is instantaneous the tissue will be severely damaged.

Not only this but the body will also try to adapt to changes in temperature but will be unable to react quick enough meaning that it will be warming itself up from the freezing as Sanji is burning it, and cooling itself down as Sanji is freezing it. This will increase the damage done by each attack as he now has his opponents body systems working against them and the more he attacked the more the damage he causes will increase.

Eventually because of its inability to maintain homeostasis the opponent’s body will suffer from what is called Homeostatic Imbalance and its systems will start to shut down which can incapacitate a person or even cause death.

So that’s my theory. I believe Sanji will develop a Freezing leg technique called Cocyte Jambe which will give him much more versatility in combat and when used in conjunction with Diable Jambe will allow Sanji to attack person in a way that destroys the body from the inside out as well as outside in.

This idea has been on my mind for a while so let me know what you guys think.

*Theory by Samurai Jack

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