Dragon Ball: The Universe's Finest

In Universe 7 there are many powerful beings, to such an extent that they challenge even the gods, these are composed of a remarkable species, the Saiyajin, to such an extent that there is not even a debate when discussing who is the most powerful of the Universe outside the God of Destruction, but what if someone appeared who challenges this Status Quo to turn their hegemony and be able to compete against them and even overcome them? -------------------------------------------------------------------------------------------------------------- Slight AU: Starts 2 years before "The Battle of the Gods" MC x ??? (For now)