So you've probably seen the concept of SSJ Rainbow before, usually as a meme, but I actually thought of a way to make it real and not be stupid, that being, I've always liked the idea that Saiyans can combine their genetics with different sources of power in order to achieve new, unique forms like Super Saiyan God, Blue (& probably 4LB) are powered by combining Saiyan genetics with Godly Ki, so in order to get SSJRainbow, the way would be to combine various different sources of power with a Saiyan's natural genetics in order to make a new, more powerful form, God Ki would be Red & Blue (as evidenced by SSJGod and SSJGSSJ/Blue), a Demon Ki SSJ could be a Purple Color adding Purple, Magical Powered SSJ could be Orange adding an Orange Color, + maybe Broly's mutation or the green power of Ikari adding green and genki or whatever gives Rage it's Cyan Aura adding Cyan or Light Blue + maybe some other source of power adding to it to contribute the other colors, I know it's still kind of dumb but still, the form would probably be incredibly unstable from combining so many power sources, requiring the user to be careful while using it to not have the instability cause problems for them
