Summary
The concept of fusion is one of the most beloved aspects of theDragon Ballfranchise. By having two powerful characters merge, an entirely new entity is born that is far stronger than either of their constituents. The most famous fusions in the series are Vegito and Gogeta, the results of a merger between Goku and Vegeta using the Potara Earrings and Fusion Dance respectively.
Despite being Goku’s first-ever choice, Gohan has never fused with anyone. However,Dragon Ball Superhas presented the half-blooded Saiyan with the perfect opportunity to do so with the inclusion ofthe incredibly powerful Broly. If they were to fuse, they could potentially form the strongest mortal that the multiverse has ever seen, possibly even eclipsing both Vegito and Gogeta, so let’s see why this is.

The Strength of the Potential Fusion
Even though Gohan and Broly have not trained as hard as Goku and Vegeta, they are within thesame tier of poweras them. While they do hold unique and special abilities in their arsenals, this can be chalked up totheir incredible latent potential, which allows them to get much stronger through their emotions rather than having to train hard day and night for it.
For Gohan, his potential is staggering due to themixture of his Saiyan and Human genetics, which is essentially a perfect pairing that allows him to tap into something deeper to gain a sudden surge in power. Broly, on the other hand, can attribute his potential to the fact that he is just a genetic anomaly. Despite being born to a non-elite class Saiyan family, his power was far greater than any other child at the time, which was the reasonKing Vegeta had him exiled to Planet Vampa.

Power comes as a response to a need, not a desire. You have to create that need.
If these two characters were to fuse, they would form a warrior of such incredible power that could give Vegito and Gogeta a run for their money. This can be seen with thestrength of both of his constituents, as Broly was able to match up to Super Saiyan Blue Goku and Vegeta while only being in his base and Super Saiyan forms, whereas Gohan was able to unlock his incredible Beast form despite not having trained properly for quite a while. This form was so great that it matched up to Ultra Instinct Goku!

By mixing the two characters with some of the greatest potentials in the series, the resulting fusion would have the ability to close the gap of power between himself and his opponent with very little effort, making him more than a match for someone even as strong as Black Frieza. In fact, many in the community believe that this potential fusion, in its strongest state,could give Beerus a tougher fight than just about anyone else!
Abilities and Techniques
Being a fusion, this character would be able to use any of the techniques of both Gohan and Broly. This means thateach of their most powerful moves can be used, from Gohan’s Special Beam Canon to Broly’s own Planet Crusher! Moreover, just as it hasbeen seen with Gogeta and Vegito, the fusion can use attacks that are a combination of the moves belonging to each character, so an incredibly powerful Special Beam Canon or Super Kamehameha mixed with one of Broly’s destructive attacks could be part of his repertoire!
Moreover, though this hasn’t really been shown in other fusions, this fusion could also probably make use of both of their most powerful forms! The reason why this hasn’t been shown before is because, up untilDragon Ball Super, the Saiyans mostly relied on similar transformations, and only now do they have unique ones. By using the incredible strength of Broly’s Legendary Super Saiyan with the speed and ferocity of Gohan Beast, thispotential fusion could even possibly have a unique Legendary Beast transformation!
How Would The Fusion Happen?
Just like with all other fusions in the series, there are 2 options as to how Gohan and Broly can fuse. The first, and more likely of these, isfusion using the Potara Earrings, which essentially just has each participant wear an earring, causing them to immediately fuse. This seems to be a far more likely way for Gohan and Broly to fuse due to how simple the action is to perform, as all that is needed is to wear the earrings on opposite ears.
Though the result is more or less thesame as the Fusion Dancein terms of power, the Potara Earrings require no intricate and precise movements from the participants. Broly is known to be a very impulsive and brash fighter, so it would be even more difficult for him to come to the right headspace to perform the movement exactly the same as Gohan, which requires them to be incredibly in-sync, down to their breathing pattern!
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Dragon Ball Z
Dragon Ball Z is a Japanese anime series produced by Toei Animation and a sequel to the 1986 Dragon Ball series. It continues the adventures of Son Goku as an adult while also paralleling the life of his son Gohan. Son Goku typically defends the Earth from villains like Vegeta, Frieza, Cell, and Majin Buu. The series is followed by Dragon Ball GT and then Dragon Ball Super.