Gomu Gomu no Mi/CoEx

## Gum Gum CoEx Techniques

### Fighting Style Focus:

Gomu Gomu no Mi, Legs, Feet, Acrobatics, Hands, Fists, Arms, Head, Compressing Body, Expanding Body, Power

**CoEx** ("Gum Gum Compression-Expansion") is a technique that uses the power of the Gomu Gomu no Mi to compress the user's body before rapidly expanding it to increase striking power and defensive maneuvers. It was first used in Athermos's battle against Gaiko on Maple Island, though was officially named during the battle against Emanuel Wynn.

When **Gum Gum Compression-Expansion** was first used, it was nothing more than a concept that hadn't gotten an official name nor used outside of a single battle. Despite that, it was so powerful it managed to completely turn the tides of battle. During the battle against Wynn, the ability was officially explained and named. **Gum Gum Compression-Expansion** can be seen as the polar opposite in design to **Gum Gum Weightless**, despite their similarities.

In terms of a raw Doriki boost, during its initial usage up until its improvement, Athermos receives an x3 to his Strength Stat, and a x2 to his Endurance Stat. This keeps the Doriki boost relative to Gum Gum Weightless despite boosting completely different attributes to a different degree.

Unlike how **Gum Gum Weightless** enhances techniques by a single tier, this typically allows the ability for completely different techniques that are stronger than something Athermos can typically do. However, when base techniques are used, they see significant improvement and increase by two stages. I.E. a Stage 1 Technique becomes Stage 3, and so on and so forth.

## Techniques

Most of Athermos' techniques in this mode are vastly different from his regular ones, applying the principles of this technique at its core in order to perform techniques he typically couldn't do. Despite that, he can alter his original techniques to fit this same principle. When he isn't using techniques exclusive to this mode, but rather alterations, he adds the prefix "CoEx" and then adds "Gum Gum" afterward. It is presumed all of Athermos's techniques can gain a CoEx variant, though he has only revealed a very small amount of them, majority unique to this mode. The following are the revealed CoEx techniques.

### Offensive Techniques

* **Gum Gum War Forge** (ゴムゴムの戦争フォージ（ウォーフォージ）, *Gomu Gomu no U~ōfōji*?, literally meaning "Rubber Rubber War Forge"): Athermos first leaps into the sky and activates **CoEx** by compressing his body while taking in oxygen to breathe. His body flattens as a result, which rapidly inflates as he uses the oxygen to rapidly increase his striking power. While his body is inflating, he stretches both of his fists toward his opponents shoulders, and his legs back into the sky before bringing them forward to slam into his opponents stomach. The rapidly inflated fists press against his opponents shoulders and his rapidly expanded legs press into his opponents stomach. This technique was first used against Gaiko. This technique is considered **Stage 2**.

* **CoEx Gum Gum War Fist Gatling** (圧縮（コ）拡大（えっくす） ゴムゴムの戦争の拳（ウォーフィスト）銃乱打（ガトリング）, *KoEkkusu Gomu Gomu no U~ōfisuto Gatoringu*?, literally meaning "Compressing Expanding Rubber Rubber War Fist Gun Battering"): Athermos combines the properties of his **Gum Gum War Fist** and **Gum Gum Gatling** to create a CoEx version of his **Weightless Gum Gum War Gatling**. After leaping into the air and taking in oxygen, Athermos compresses his body and flattens it as he stretches his hands high above his head to rapidly extend about 100 feet above him. He then throws his hands down toward his opponent, looking as if he had multiple paper flat fists. He then begins rapidly twisting them around and coiling them, before shaking his fists rapidly as the yuncoil and untwist. His body rapidly expands back as he unleashes a barrage of these punches toward his foe, sending them deep into the ground until his arms couldn't stretch any further to reach the target. This is Athermos' strongest **CoEx** technique and the most straining, as after this usage his body is sent hurtling into the sky and several hundred feet away. This technique was first used to defeat Wynn. This technique is considered **Ultimate Stage 3**.

### Defensive/Counter Techniques

* **Gum Gum War Boomerang** (ゴムゴムの戦争ブーメラン（ウォー・ブーメラン）, *Gomu Gomu no U~ō Būmeran*?, literally meaning "Rubber Rubber War Boomerang"): This was the first technique revealed by Athermos in this mode, and was the inspiration for later creating a new subset of moves. When Athermos is about to be attacked, he activates **CoEx** by compressing his body and taking in oxygen to breathe. His body flattens as a result, and his fist outstretched toward his opponents face. Just before it connects, he uses the oxygen he gathered to rapidly inflate his body, rapidly increasing his striking power and sending his opponent flying. This technique was first used as a method of countering Gaiko's Busoshoku Haki. This technique is considered **Stage 2**.

* **CoEx Gum Gum War Fist** (圧縮（コ）拡大（えっくす） ゴムゴムの戦争の拳（ウォーフィスト）, *KoEkkusu Gomu Gomu no U~ōfisuto*?, literally meaning "Compressing Expanding Rubber Rubber War Fist"): This was the first technique officially named after the technique was named, and is also the first technique to apply a base skill and tweak it for this mode. When an attack is coming at him, Athermos begins to flatten his body and compress it after taking in oxygen to breathe. With this flattened and compressed body, he dodges incoming attacks before stretching his fists toward his opponents chest and using the oxygen to rapidly expand his body. His fists collide against his opponents chest, as he shakes his fists allowing them to repeatedly hit into his opponents chest. This technique was first used against Wynn. This technique is considered **Ultimate Stage 2**.