Asura Path

The grants the user the ability to summon mechanised armor, augmenting their body with extra limbs and various robotic weaponry. When used by Pain, the Asura Path was channeled through the body of a ninja puppeteer.

This ability grants the user mechanised weaponry and abilities. The user gains six arms and three faces, and had a folded, serrated blade-like sash around its waist. It could also protrude a similar set of flexible blades from one of its arms. It could fire one of its left forearms off as a long-range projectile, and could pull out his arms to reveal and fire a cluster of segmented missiles at its targets. It could quickly propel itself forward with a burst of chakra from its boots, and could protract multiple blades and drills from its right arm in combat. Also, it could open up the crown of its head to release a powerful chakra blast that was capable of destroying numerous buildings at once. Its physical raw power was enough to rip Jiraiya's arm off and crush his throat with basic taijutsu moves, as well as to throw the Animal Path all the way into Konohagakure from the outskirts of the village. All of these abilities befitted the "warring demon" name that the Asura Path held, whilst giving it a considerably higher degree of versatility than the other paths had (aside from the Deva Path).

In addition to its immense offensive power, the Asura Path's body was incredibly resilient to damage. It survived the detonation of a Lightning Release Shadow Clone, a massive punch from Chōza Akimichi, and a direct hit from Kakashi's Lightning Cutter. When weakened but not completely disabled, the Asura Path was still dangerous. Kakashi noted that he did not have enough chakra or stamina to completely destroy its body and it wasn't until Naruto attacked it with a Rasengan while in Sage Mode that it was rendered totally incapacitated. Despite being used frequently to provide heavy firepower, the Asura Path was readily sacrificed to protect the even more powerful Deva Path, acting as a human shield against Kakashi's Lightning Cutter.

During Naruto's battle with Nagato, a set of the Asura Path's arms appeared on Nagato's body, possibly alluding that Asura Path's structure may be its actual powers rather than it completely being body modifications. One of the arms could detach to reveal a set of mechanical tendrils to restrain an enemy, while the other would transform into a small arm-mounted cannon.

Influences
In Buddhism, the Asura realm is the plane of the demi-divine warring demons. They are sent to this plane because of actions based on jealousy, struggle, combat or rationalisation of the world. Following a common depiction of Asura, this path has six arms and three faces, each of which display a different emotion.