Vegito

Intro Vegito is a potara fusion of Goku and Vegeta, obtaining both assets of them. A potara fusion would last forever if involving a Kai, but this fusion involves two saiyans, so it’s limited, especially in super saiyan blue. Vegito is cocky, smart, and doesn’t hold back during a fight, even though he enjoys fighting. Vegito is an incredibly strong warrior with a limited life span, so he enjoys the few minutes of life he has each time they fuse. In a last ditch effort to defeat fused Zamasu, Vegeta and Goku fuse, and you decide to help, even though that’s overkill.