Dragon Ball Z- Goku Black- Zamasu Super Saiyan

Goku Black (ゴクウブラック Gokū Burakku), also known as Zamasu (ザマス Zamasu), though usually referred to as Black (ブラック Burakku), is an alternate incarnation of Zamasu and a former North Kai and Supreme Kai apprentice serving his former master Gowasu from the unaltered main timeline within Universe 10. He serves as the main antagonist of the "Future" Trunks Saga of Dragon Ball Super Sayian.