Majin Buu

Majin Buu was the utterly cruel and malevolent leader of the Majins, a race of beings said to be older than the universe itself. Born in a realm of complete darkness, Majin Buu had led his people in a War against the Saiyans, using an ancient weapon known as the Dragon Ball, but they were thought to have been destroyed thousands of years ago during a final battle against the Super Saiyan God. Majin Buu had survived, however, and after going into hiding for thousands of years, he returned during the Convergence and sought to retake the Dragon Ball and use its power to transform the universe by plunging it back into eternal darkness. Before his attempt could succeed, however, Majin Buu and his armies were finally defeated by the new Super Saiyan God, Son Goku, in the Battle of West City, resulting in the eventual death of Majin Buu.

Abilities
Absorption:  Super Buu engulfs a victim completely, or using a part of his body to suck the victim into his body, thus gaining their power and abilities.

Body Manipulation: An ability that allows the user to freely manipulate his/her own body structure.

Regeneration: The ability to regrow certain body parts or cells that have been dismembered or destroyed and replace them with brand new cells, or simply regrouping all of their separated parts back together.