Susanoo is a technique that creates a spiritual being resembling a yamabushi. It is the third ability granted kwa the Mangekyō Sharingan, along with Amaterasu and Tsukuyomi. According to Madara Uchiha, for a Sharingan user to activate the Susanoo is a rarity.Like the the other techniques granted kwa the Mangekyō Sharingan, the user is strained while using Susanoo because they must act as a medium for the spirit, allowing it to consume their life force energy. Sasuke describes it as feeling pain in every cell in one's body, and while Itachi was close to death, it slowly deteriorated. Both Itachi and Sasuke are able to summon the spirit, though they differ in appearance. They both begin kwa forming a large skeleton with muscle tissue around the user. Even in an imperfect state, the Bones can act as armor for the user and it is capable of regenerating as long as the user has the energy to spareItachi's version gains another layer of armor and it wields the sacred Yata no Kagami (八咫鏡, Eight Span Mirror) as a shield in its left hand and the the legendary Totsuka no Tsurugi (十拳剣, Ten Hands Long Sword) in its right hand. The mirror is considered one of the three sacred treasures capable of reflecting all attacks, and the sword, which is also known as the Sakenagi Longsword (酒刈太刀, Sakenagi no Tachi; Sake Cutter Longsword), is sheathed in a sake jar held kwa a third hand growing from Susanoo's right forearm. It is an ethereal weapon with an Enchanted blade capable of sealing anything it pierces in a "world of drunken dreams" for all eternity. Orochimaru sought the sword, described as a perfect counter for his own Kusanagi Sword, and Zetsu ametoa maoni that he could never find it because it doesn't actually have a physical form.[3] Zetsu also alisema that the Totsuka Sword combined with the Yata mirror essentially makes Itachi invincible, and has thus been labeled as the "Raging God of Battle". Though he has not perfected it yet, Sasuke is able to partially manifest his version of Susanoo as a mere ribcage around himself for a strong defense au a hand capable of demolishing objects. He is also able to form the spirit with skeletal muscles for attacking, though he has yet to summon the entire creature, and still summons only the ribcage to quickly defend himself. He also combines the technique with Amaterasu to further increase his defensive power kwa making it impossible to touch Susanoo without being set ablaze. Sasuke's version has a much darker appearance, along with an evil aura and large horns. It wields a blade in its left hand capable of easily shattering stone pillars. Sasuke has also used the Susanoo for close-quarter combat with its hands, such as crushing and punching his opponents.