What are some interesting plot ideas for 'Justice League x OC Fanfiction'?

One idea could be an OC with the power to manipulate time joining the Justice League. They could accidentally create alternate timelines while trying to stop a villain, and the Justice League has to fix it. For example, the OC might go back in time to prevent a major disaster but end up changing the course of events in a way that makes the villain even more powerful in the new timeline.

One idea could be X23 joining the Justice League on a mission to stop a powerful mutant - hating villain. Her unique combat skills and mutant abilities would add an interesting dynamic to the team.

Maybe the OC Kryptonian has a power that is malfunctioning. They struggle to control it and it causes problems within the Justice League at first. But through the help of other members like Superman, they learn to master it. This could lead to a story of self - discovery and friendship within the team. They could face a villain who specifically targets their power, making it a race against time to get it under control.

One idea could be an OC who is a long - lost relative of Aquaman. They could have unique powers related to water control but in a different way than Aquaman. For example, the OC can turn water into different shapes and use them as weapons. Another plot could involve the OC being from a hidden underwater tribe that has a different view on Atlantis's rule. The OC could try to bridge the gap between their tribe and Atlantis while also joining the Justice League to fight common threats.

One idea could be an OC with the power to manipulate time joining the Justice League. They could accidentally create a time rift during a battle, and the League has to fix it while also dealing with the OC's insecurities about their powers.

One plot idea could be that the Gamer OC is accidentally brought into the Justice League's universe while playing a new, experimental game. The OC then has to prove their worth to the League by using their gaming knowledge to defeat a new, tech - savvy villain. Another idea is that the OC is a super - gamer in their world and is recruited by the Justice League to train them in virtual combat scenarios for an upcoming battle.

One idea could be that a powerful cosmic entity threatens both universes. The Justice League and the Avengers initially clash due to misunderstandings in their attempts to deal with it. But then they realize they need to work together. They combine their powers and strategies, like Superman's strength with Hulk's brute force and Batman's intellect with Iron Man's technology. This could lead to epic battles and heroic sacrifices as they strive to save both universes.

Maybe in the fanfiction, the Hulk's gamma radiation has an unexpected effect on some of the Justice League members. For example, it could give Superman a new vulnerability or temporarily enhance the powers of Flash in a strange way. This leads to a complex situation where they need to both deal with the Hulk and the consequences of this new development.

One idea could be an OC God who has the power to manipulate time. This God could be a new threat to the Justice League as they struggle to understand and combat this power. For example, the God could reverse important events in the League's history, causing chaos.

One idea could be a crossover where the Young Justice team has to team up with the Justice League to face an interdimensional threat. Maybe a powerful villain from another dimension is trying to invade Earth and the combined skills and powers of both groups are needed to stop it.