Zamasu

Zamasu (ザマス Zamasu) (spelled Zamas in Viz Media's release of the manga), is a character and villain who appears in the Dragon Ball Super series. He is introduced in the forty-seventh episode of Toei Animation's Dragon Ball Super anime series which first aired on June 12, 2016 and in chapter #14 An SOS from the Future!! (未来からのSOS!! Mirai kara no esuōesu!!) from the manga.[1]

Originally an apprentice Supreme Kai (界王神 Kaiōshin, lit. "World King God") from Universe 10, Zamasu first appears as Goku Black (ゴクウブラック Gokū Burakku), an entity that resembles Son Goku and refers to himself as such, before being given the name "Goku Black" by Bulma. He wears a single Potara earring and a Time Ring, the latter of which allows him to travel between different timelines at will, and also protects him from being erased by temporal paradoxes. He wreaks havoc in Future Trunks' timeline, bringing humanity to the brink of extinction. As he explains to Future Trunks, he has come to believe that utopia could only be achieved for the multiverse by bringing about the decimation of humanity and all other mortal beings, which he views as corrupt and violent. He also kills all the other gods in the future timeline, seeing them as being lazy for not doing anything about mortals while also being a hinderance to his plan.

In the anime's original, unaltered timeline, Zamasu hijacked Goku's body using the Super Dragon Balls as part of his plan to attain supreme power and wipe out all mortals and gods. Although Beerus manages to kill Zamasu before he can complete his plan, Goku Black's Time Ring prevents him from being erased from existence. To complete his plan, he joins forces with the Zamasu of Future Trunks' timeline, who uses the Super Dragon Balls to become immortal.