Yamata no Orochi

Yamata no Orochi is a snake-shaped Bijuu. She had a blood-red eyes, eight heads and the head (also portrayed by the roots wrapped around shrubs and bushes) and has the power of the demon world, a symbol of evil. Each head of Orochi represents a symbol: the soul, ghosts, evil, devil, the world after death, and death. The real power of Orochi should not be too large, even weak. A member of the Kusanagi clan, when attacking to carelessness, using the legendary sword Kusanagi no Tsurugi. Therefore, as a consequence, Yamata no Orochi takes over the sword and absorb the forces that are inside and become a very powerful creature, and finally storing it inside their bodies. With his new power, remove the power of darkness Orochi huge bijuu so wake the others, and become arrogant. Orochi beat many bijuu but he was defeated by the Kyuubi. The reason is simple: Kyuubi's power is not limited to, making a hole in the Kusanagi that even Enma and Sarutobi could not scratch it at all. In legend, he matched the Kyuubi in terms of strength, but he has limitations.

Body length exceeds eight major mountains, he is the biggest bijuu. Originally, he was weaker than Hokou and Nekomata. But that was 1000 years before a brave warrior tried defeating the Kusanagi no Tsurugi. In the process, the sword was absorbed by the Orochi, and massively increase the strength. After that he is free to use the power of the sword from his stomach.

Fate: Yamata no Orochi reportedly sealed within Orochimaru's body. Yamata no
Orochi awaiting the arrival of a genius of the Yagami clan, which is the mortal enemy of the Kusanagi clan. The goal is to generate Yamata no Orochi back to fight Kyuubi again. Since Yamata no Orochi's power residing in the Yagami clan, if the successor has emerged as one of genius in 1000 years time which could awaken Orochi ability, the ability to be full again. Once this process is complete, the body's genius will be destroyed in the process of reappearance of Orochi's body, which has a new strength. That is not to be found before the battle against Kyuubi determine, and could kill anything, destroy places like anything, and get unlimited vision (as Kyuubi has). The core of Yamata no Orochi's power is a form of forbidden sealing jutsu. As soon as the Yagami clan successors established enough for it, greater force will appear in the return of Yamata no Orochi
Orochi fight 5 times, winning over Shukaku, Isonade, Kaku, Raijuu, and losing horribly over Kyuubi. His ability to summon demons from other worlds and the power of the Kusanagi. The ability of the chakra / stamina and the physical one level below the Kyuubi. Because that's Yamata no Orochi is considered the devil / demon strongest after the Kyuubi.
Ability: Legendary Sword "Kusanagi no Tsurugi", calling the soul the devil.
Element Symbol: Crime / Darkness.
Origin: Ancient Battle Field in Osaka.

Additional info:
There is also a story that said the eight-headed giant snake extermination by Susanoo. According to legend, a small town to live in fear of a giant snake, and every year the town to sacrifice a girl to keep him happy. Lord Susanoo heard about it, and decided to eradicate the monster. He eradicate the monster by giving him alcohol, and cut his head when he was drunk. In the midst of Kagura dance, this is the most famous because he liked to have intercourse with her Isonade tailed bijuu 3.