Isobu, the Three-Tailed Beast

Isobu is a gigantic sea-serpent that was sealed into Yagura, the Forth Mizukage, and like all the other Tailed-Beasts, it has a large amount of chakra. Isobu's appearance is somewhat of a large turtle with a crab-shell and three shrimp-like tails. It is always shown that it's right-eye is always closed, probably from an injury, but it is actually unknown from when it occurred. Isobu's abilities include that it can create corals and it can swim at very high speeds. Isobu has also been shown to roll into a ball to attack its opponents, making it an advantage for the Tailed-Beast because then, it could use its spikes to severely damage the opponent. Its tough skin and shell provides additional defense, allowing it to withstand nearly all forms of attacks. In the anime, Isobu's abilities were greatly enhanced, allowing it to create shock waves to repel attacks and produce large tidal waves that spread in all directions. The only known jinchuriki known for Isobu is a Konohagakure ninja, Rin Nohara, and the Fourth Mizukage, Yagura. 

Isobu can be really cool and powerful at the same time and if you were to have Isobu sealed in you, you would be one lucky man. See you until my next post on Son Gokuu!