Pein

Pein is shown to have six bodies in total that he is able to switch between. The bodies he is not currently using are kept in a type of machine, though it is unknown if the machine itself plays any role in the process. Of the two bodies he has been seen in, the only consistent physical characteristics are a large number of piercings and his Rinnegan eyes. He implies that each of the bodies have a specific purpose, as he switches to one body solely to kill an intruder.

During his time with Jiraiya, Pein was able master every jutsu taught to him and became able to utilize all six of the different chakra elements. In later years he exhibits the ability to clone his subordinates with the Shapeshifting Technique, in which he uses human sacrifices to create a perfect copy of another person, controlled remotely by the original. The clones formed possess any unique genetic traits or weapons the original has, but its abilities are proportionate to the amount of chakra given to the clone. Pein can control rain and can detect the movements and chakra levels of people traveling within it. He also has a large array of different summons that he can quickly switch between, each of which possess a number of large piercings and Rinnegan-pattern eyes.

-Wikipedia