User:Faded2Black

Tailed Beast Juubi
For a human to get to this dimension, it either takes a month long travel on secret paths from Konohagakure or, if they have a summoning contract, they can let a Gedou Mazou use the Reverse Summoning Technique. According to Kabuto, dimension is impossible to find by foot for those who don't know the secret route. In the anime, Obito was transported to Tailed Beast dimension in his youth via using the summoning technique without a contract.

History
Centuries before the founding of the hidden villages, the Sage of the Six Paths saved the world from the Ten-Tails. He managed to subdue the beast and seal it within his own body, becoming the first jinchūriki. However, this offered merely a temporary solution to the menace: in the event of his death, the seal would dissolve and the Ten-Tails would once again be unleashed upon the world. Knowing this, the Sage searched for a more permanent solution. Ultimately, the Sage succeeded by using his Creation of All Things ability to separate the Ten-Tails' chakra from its body and divide it into nine separate constructs that would later become known as "tailed beasts", scattering them throughout the world. As a final precaution, using Chibaku Tensei, the Sage entombed the physical remains of the Ten-Tails within a colossal stone prison and hurled it into the heavens, creating the moon. The astonishing feat of not only successfully sealing the Ten-Tails, but also suppressing it, made the Sage a deified hero throughout the shinobi world.

Jinchūriki
Once the jinchūriki are on good terms with their tailed beasts, they can act as partners in battle. This advantage allows the jinchūriki to counteract genjutsu without requiring another person to be present, as the tailed beasts can disturb their jinchūriki's chakra flow to break the genjutsu.[7] They can also transform into their tailed beasts without losing control and are able use to their considerable abilities to the fullest extent. However, to achieve the full transformation, the tailed beasts and their jinchūriki must come to an agreement about trading certain amounts of their own chakra, otherwise, if the jinchūriki has complete control over the chakra but does not have the tailed beasts' own cooperation, the transformation will result in failure, and the tailed beasts will then gradually consume their jinchūriki's own chakra whenever they use the tailed beasts' chakra, which can kill the jinchūriki.Unlike jinchūriki who have learned to control their tailed beasts, like Killer B, Naruto's transformations were almost always triggered by his emotional state. The more he was distressed, the easier it was for Juubi to manipulate him through its chakra; its control over usually corresponds with the number of tails grown. Naruto was able to reach the third tail of Version 1 and remain in control over his body, but will become highly aggressive and dangerous due to the negative influence of Juubi chakra.

Naruto's three-tailed form. Naruto's most powerful weapon in that state was the demon fox shroud itself, and it appeared to have a mind of its own; when a strike that was meant for Sasuke missed, the chakra itself stretched off of Naruto's arm and managed to hit Sasuke before he had time to react. Since the chakra was sentient, it was extremely difficult, if not impossible, to predict, as Naruto was followed with the Sharingan, but the chakra was not. The shroud granted Naruto some measure of protection, as it could endure attacks like the Fire Release: Great Fireball Technique

Abilities
As the original form of all nine tailed beasts, the Ten-Tails was said to possess massive and overwhelmingly foul chakra that is potent enough to bring total despair and destruction to the world.[11] According to Kurama, not only is the Ten-Tails the source of all chakra, but is also the progenitor of everything that exists in this world. Kurama stated that it was a god that created countries and had the power to swallow oceans, split the land, and carry mountains. In addition, Kurama admitted that it alone wouldn't even stand a chance against the Ten-Tails, and stated that the Sage told them that its revival would result in the end of the world.[12] When Naruto Uzumaki attempted to use Sage Mode to gauge the power of the beast, he was overwhelmed by the vastness of the beast's power, which Kurama noted as immeasurable.[13] This was again reaffirmed when the beast's chakra completely warped the shape of the Sensing Water Ball in the Allied Forces HQ in both its initial and second forms.