Editing Fused Zamasu (section)

==Personality==
Fused Zamasu, embodying the arrogance and self-righteousness of both Goku Black and Future Zamasu, perceives himself as the personification of justice. Upon his fusion, he boldly proclaimed himself the supreme deity, constantly emphasizing his divine splendor and unquestionable dominion. His overwhelming ego is evident in his disdainful approach to combat, often refusing to defend himself against Goku and Vegeta until Goku’s attack blasts off half his face. He prefers to hover above the battlefield, symbolically and literally looking down on his adversaries, and frequently uses terms like "holy," "judgment," and "absolution" to name his techniques.

Despite his composed exterior, Fused Zamasu is deeply unstable, perhaps more so than his individual components. Gowasu attributes this instability to Zamasu's obsession with the contradiction between gods and mortals. He flies into a blind rage when Trunks and Vegeta briefly overpower him in a beam struggle, despite not being physically harmed by the deflected attack. His fury intensifies when Goku lands a successful blow using the God Kamehameha and Kaio-ken. After his right side is damaged and mutated by the Light of Justice, Zamasu becomes increasingly deranged and prone to violent outbursts. This instability is due to his body deteriorating and the internal conflict between the immortal Future Zamasu and mortal Goku Black. By the time he faces Vegito and Future Trunks, Fused Zamasu descends into madness, ranting furiously and embodying the very destructiveness he despises in mortals. In the manga, while he retains his arrogance and revels in his power, he does express anger towards Gowasu for not explaining that only Supreme Kais can achieve a permanent fusion. He also chastises Goku and Vegeta for using the Potara earrings, the sacred treasures of the gods.

Interestingly, Fused Zamasu is acutely aware of his own hypocrisy in merging with Goku Black, a mortal. He views this as a necessary compromise to achieve his vision of a new world. By incorporating Goku's body into his being, he aims to perpetually remember the "sins" of mortals and the "failures" of gods. He justifies his actions as being for the greater good of the universe, even shedding tears he believes purify the world. When invoking the Light of Divine Justice, he declares that a god who cannot eradicate evil is worthless, suggesting that his sense of worth is tied to his power and ability to eliminate what he deems as evil. In the manga, once his insanity overtakes him, Zamasu abandons any pretense of justice and declares his intent to annihilate all life across all realities, save for versions of himself, deeming all other gods unnecessary.