A common theme is power - seeking. They are often depicted as constantly striving for more power and ruling over the universe. Another theme is their unique bond, whether it's a friendship or a more sinister partnership.
One popular 'goku black x zamasu fanfiction' is 'The Dark Alliance'. It delves deep into their partnership and the chaos they create in the universe. Another interesting one could be 'The Merged Power', which explores what would happen if they combined their powers in different ways.
Zamasu meets his end in the manga because he underestimates the strength and strategy of Goku and Vegeta. They exploit his weaknesses and deliver the final blow that finishes him off.
She might be depicted as having a complex personality. On one hand, she could have a cold and calculating side due to her divine or self - proclaimed superior nature. On the other hand, there could be a hidden vulnerability that only the male reader gets to discover. This duality can make for an interesting exploration in the fanfic.
Well, in fanfics involving Female Zamasu and a male reader, it often explores a unique dynamic. The relationship could be based on the contrast between Zamasu's divine or complex nature and the more ordinary male reader. It might involve themes of power, redemption, or a journey of self - discovery for both characters.
In the manga, Goku managed to kill Zamasu by combining his strength with Vegeta and performing a joint attack. They also exploited Zamasu's weaknesses to gain the upper hand.
Black Noir is black in the comics. The creators have designed the character in such a way to give a specific look and feel, and the black complexion is an integral part of that design.