Another idea is that he could be involved in a relationship, either a friendship or a romantic one. This relationship could be a source of growth for him or the other characters. It could also create interesting conflicts and plot twists as the story progresses.
One possible aspect could be exploring his backstory. Maybe he has a tragic past that led him to be the way he is in the fanfiction. For example, he could have been an outcast in his own realm due to his unique powers or beliefs.
He might also play a role in the power dynamics within the story. Perhaps he has a special ability that could either help or hinder the main characters in their fight against the forces of evil. He could be a wild card, with his actions being unpredictable.
Maybe Male Eclipsa gets caught in the middle of a war between two powerful factions in the Stars v the Forces of Evil universe. He has to decide which side to take, or he might try to find a third way to end the conflict, which could lead to many adventures and challenges.
Star would be an obvious choice. Their different approaches to magic and their positions in Mewni society could create a lot of interesting interactions. Marco could also be a good character to pair with Eclipsa. His down - to - earth nature could contrast with her more otherworldly and mysterious self. And Moon could be another. There's a lot of history between them, and exploring their relationship further, whether it's a begrudging alliance or a slow - burning friendship, would be great.
It could be an ancient, powerful demon that has been awakened by the chaos in the magical realms. This demon might have a vendetta against Eclipsa's family specifically and wants to destroy her line.
I'm not sure specifically as I haven't read that particular fanfic. But generally, in 'Star vs the Forces of Evil' fanfics about Eclipsa, they might explore her backstory, her relationships within the show's universe in new ways, or create new adventures for her character.
One idea could be that Eclipsa discovers a new, hidden power within herself that gives her an edge against the forces of evil. Maybe it's a long - lost spell from her ancient lineage. Another could be a team - up between Eclipsa and some unexpected allies from different realms to fight the forces of evil.
A great plot idea could be that Eclipsa discovers a hidden power within herself that is both a blessing and a curse. She has to figure out how to control it while also dealing with the politics of Mewni. Another could be a time - travel fanfiction where Eclipsa goes back to key moments in Mewni's history to change things for the better. And one more idea is that Eclipsa starts a school for different kinds of magic, which causes a stir among the traditional magic users in Mewni.
You can try searching on popular fanfic websites such as Archive of Our Own (AO3). They have a large collection of fanfics for various shows, including 'Star vs the Forces of Evil'.
One great male OC fanfiction in the 'Star vs the Forces of Evil' universe could be 'The Lost Star Knight'. It features a male OC who has a mysterious past and ends up getting involved in Star's adventures. His character development is really interesting as he learns about the magical world around him and forms unique relationships with the existing characters.
Black and evil forces often gathered together to carry out illegal and criminal activities in a certain area or industry. They did evil, bullied the people, disrupted the economic and social order, and caused a bad social impact. Cracking down and punishing the evil forces was an urgent task at the moment. Departments such as the prosecutor's office and the public security organ played an important role in the special struggle against the black and evil. By strengthening cooperation, they performed their duties according to law, promoted the "breaking the net and opening the umbrella" operation, sued criminals involved in crimes, filed a case to investigate the "umbrella", and severely sentenced the crimes committed by the evil forces. In addition, we should strengthen anti-money laundering efforts and crack down on money laundering activities in black and evil crimes. The struggle against the evil forces was a long-term and arduous task. It was necessary to maintain a high-pressure situation, strengthen systematic governance, legal governance, comprehensive governance, and source governance, so as to achieve a normal anti-crime and anti-evil, eradicate the soil where the evil forces bred, and provide a more fair and just social environment for the people.
A good male OC in this fanfiction should have a well - thought - out backstory. For instance, if he's from a different planet, his culture and upbringing should be detailed. This makes his actions and decisions more believable. Also, his relationship with the main characters like Star and Marco is crucial. If he's a rival to Marco, there should be good reasons for it, like competing for Star's attention in a non - cheesy way.