It could be a genetic mutation in the fanfic's storyline. Some strange event or factor could have caused a change in Bardock's genes, making it possible for him to become Super Saiyan. This genetic change might be related to some ancient Saiyan lore or a new element introduced in the fanfic's universe.
Perhaps a story where Cabba accidentally travels back in time and meets a younger Vegeta. Cabba tries to teach Vegeta about the future, about how Saiyans can be more than just ruthless warriors. Vegeta is initially skeptical but slowly starts to see Cabba's point of view, leading to a change in his own approach to life and fighting.
The change of Bardock becoming Super Saiyan in the Vegeta fanfic can completely rewrite Saiyan history. It could start a new era of Saiyan pride and power. Bardock, with his new - found Super Saiyan form, might be able to teach the younger Saiyans about the transformation. This could lead to a more united Saiyan race, as they all work towards achieving the Super Saiyan state. It might also mean that they are not as easily defeated by Frieza, as they have a stronger force to oppose him. This could result in a different galactic power structure, with the Saiyans being a more dominant force.
Another aspect could be their family values. Vegeta has a complex relationship with his family, especially with his father and his own son. Cabba also has his own family and community in Universe 6. A fanfiction could show how their different family experiences shape their Saiyan identities. For example, Cabba's community might be more tight - knit, while Vegeta grew up in a more cut - throat Saiyan society. They could share their stories and learn from each other about what it means to be a Saiyan.
In Saiyan fanfics, Vegeta and Bulma's love is often depicted as a complex and evolving relationship. Vegeta, the proud Saiyan prince, initially has a rough exterior. But Bulma's tenacity and unique charm gradually break through his barriers. Their love story can add a lot of emotional depth to the Saiyan - centered fanfic universe.
In Saiyan fanfics, their relationship is complex. Vegeta is a proud Saiyan and Bulma is a smart Earthling. Their love story usually involves Vegeta learning about emotions and Bulma helping him adapt to Earth. It's an interesting dynamic that often makes for great fanfic material.
Well, one possible scenario in such a fanfic could be that Cabba and Lemon team up for a tournament. Cabba's Saiyan strength combined with Lemon's unique skills (assuming she has some in the fanfic's universe) could make them a formidable duo. They might face challenges from other powerful characters in the Dragon Ball Super world, like the various villains or even some of the more competitive good guys.