Goku Black

Goku Black, identified as Zamasu, is an alternate version of Zamasu, previously a North Kai and Supreme Kai apprentice from Universe 10. The most concrete evidence of Goku Black's superiority is his seemingly endless evolution that was witnessed before he merged with his counterpart in the form of Zamasu. The Zenkai Boost that he would receive from taking a thrashing at the hands of Vegeta would push him to a completely different level. Before acting on his dark impulses, as Zamasu, he was a calm and patient individual, willing to listen to his teacher's words. However, he long harbored an utter hatred for mortals, perceiving them as a blasphemy and the gods' greatest mistake. He came to hate the gods for not doing anything about their "mistake". After giving in to his desires, Zamasu mercilessly killed his former master as his first step down a dark path. Despite his cruel, aggressive, and certainly unsympathetic actions, even to his own kind, Zamasu feels perfectly vindicated, truly seeing no evil in his actions. He scoured several timelines for proof that mortals are a corruption of existence that prevents it from becoming a true paradise.