SonKamiKage

@SonKamiKage Good point. It would either have to be reincarnation or him just showing up. But I can imagine it now.
            
            Madara: So you guys have the power to blow up universes, fly, transform, and get stronger with near death?!
            
            Goku: Yep! All thanks to my training, and of course, my saiyan DNA.
            
            Madara:...Hashirama cells ain't boutta have shit on this.
            
            Goku: What?
            
            Madara: Goku, can you spit in this cup for me?
            
            Goku: Why?
            
            Madara: If you do, then by tomorrow, you'll have a super strong opponent to fight.
            
            Goku: Bet *spits in cup*
            
            Madara: See you later. *leaves*
            
            Madara: ...Alright, time to become a Super Saiyan.

@LimboRikudo999 Haha no problem, you make great stuff so I'm definitely adding it to my must read list.
            
            Also even though it was a joke, I thought about the Madara in dragon ball comment and I really don't see a way to make it work other than reincarnation lol.