One idea could be an OC with a unique ki ability that no one in the Dragon Ball Z universe has seen before. For example, the ability to transform into an energy form that can pass through solid objects. Another plot could involve an OC who is from a long - lost race in the Dragon Ball Z lore and has to find their place among the Saiyans, Namekians, etc. A third idea might be an OC who is a time - traveler and has to prevent a major catastrophe in the Dragon Ball Z timeline.
In 'Dragon Ball Z OC Rebirth Fanfiction', a cool plot could be an OC who has the power to manipulate gravity in ways that even Beerus might be impressed by. This OC could use this power to create new training methods for the Z - fighters. Another plot could be about an OC who is reincarnated from an ancient warrior and has memories of a past threat that is about to resurface in the current Dragon Ball Z timeline. They then have to convince the Z - fighters to prepare for this threat before it's too late. Additionally, an OC with a special bond with the Dragon Balls themselves, able to communicate with them and gain unique powers from them.
One idea could be an OC with a unique power that can nullify the energy of any attack, which throws off the Saiyans' fighting strategies. Another could be an OC who is a master of a long - forgotten martial art that gives them an edge in battles against the Z - fighters. Maybe an OC who has a connection to an ancient and powerful race that even the Kais don't know much about.
For a Beerus OC in fanfiction, it could be an OC who was once a normal cat - like creature on a destroyed planet. Beerus, out of pity or some unknown reason, bestowed some of his power on this creature. As a result, the OC gradually evolved into a powerful being with some of Beerus's characteristics. This OC could have a very different personality from Beerus, being more kind - hearted and using their power to help revive planets rather than destroy them.
One interesting plot could be a new villain emerging from a long - forgotten dimension. This villain has powers that are a mix of different techniques from all the universes in Dragon Ball. He starts causing chaos by stealing the energy of strong fighters to open a portal to an even more powerful realm.
Another interesting plot could be that the gamer aspect brings in virtual reality elements. The Z - fighters enter a virtual world where they have to fight enemies with different rules. This virtual world could have power - ups and obstacles that are based on video game concepts, like finding hidden keys to unlock new areas or defeating bosses to gain special abilities that they can then use in the real Dragon Ball Z world.
One idea could be a crossover with the Naruto universe. Goku and Naruto could team up to fight a common enemy. Maybe they face an evil villain who has the power - stealing abilities like Cell and the ability to use powerful ninja jutsus. Another plot could be a crossover with One Piece, where Luffy and Goku have a friendly competition about who can eat more food and then end up having to work together to defeat a new threat at sea that has the strength of Saiyans and the deviousness of pirates.
Perhaps a fanfiction where a young Saiyan from a destroyed planet manages to find their way to the Xenoverse 2 world. This Saiyan has a different fighting style compared to the ones we know. They join the Time Patrol not just to save timelines but also to find a new home for their kind. Along the way, they face discrimination from some of the other races in the Xenoverse due to their Saiyan heritage, but they prove themselves worthy through their strength and determination.
The Saiyan OC could be a time - traveler who comes to the Dragon Ball Z era. Android 18 meets this strange Saiyan and at first is suspicious. But as they get to know each other, they realize they can work together. They might have to deal with the chaos that the Saiyan OC's time - traveling has caused in the timeline. Maybe some old villains are resurrected because of it, and Android 18 and the Saiyan OC must find a way to stop them while also dealing with their own relationship development.
There are 'Dragon Ball Z OC Fanfiction' where the OC is a non - Saiyan but has a special connection to the Dragon Balls. For example, an OC who is a wizard from a far - off planet. This wizard could use magic in ways that blend with the ki - based combat of Dragon Ball Z. They might be on a quest to protect the Dragon Balls from an evil force that wants to misuse their power for world domination.
One interesting 'Dragon Ball Z OC' fanfiction story could be about an OC who has a unique power that they discover during a battle against a new enemy. For example, an OC might have the power to manipulate time in a very limited way, like slowing down an opponent's attack just enough to dodge. Another could be an OC that is from a different planet but has a connection to the Saiyans. This OC could bring new knowledge about Saiyan history or abilities that were previously unknown.
One idea could be Goku Jr facing a new, powerful enemy that has a unique power related to time manipulation. This would force him to train in ways he never has before and seek help from unexpected allies, like some of the older, wiser characters from the original Dragon Ball Z series.