Sage Art: Tailed Beast Rasengan

After entering the Sage, the user generates a Rasengan with a yin to yang chakra ratio of 8:2. The resulting technique is a handheld Tailed Beast Ball the size of a Rasengan. Then the user uses the natural energy around him to fill in the actual tailed beast part of it so it is not only used by Jinchuriki

Due to the high concentration involved in forming a Tailed Beast Ball, the technique originally failed when it was first developed, as it requires a 4:1 ratio of and  chakra respectively.

The resulting Rasengan is incredibly heavy, requiring the aid of a chakra arm to carry it around. The resulting attack is so dense that it can smash a normal Rasengan with ease without losing its own form.