Disclaimer: Dragon Ball is owned by TOEI Animation and Akira Toriyama. Dragon Ball Multiverse is owned by Salagir and whoever the artist is this week. If I owned either one, I sure as hell wouldn't be posting this here.
(Show cover with four guys that won't even be in the tournament.)
Somewhere in the multiverse, two fists collided in a packed arena. One was gigantic, wreathed in an emerald aura. The other was gloved, surrounded by gold. A massive shockwave rocked the arena from the force, forcing even fighters like Piccolo, Goku and Vegeta to put up their guard. Frieza and his family stood open-mouthed at the amount of power on display. It was around then that the prized scion of the House of Cold shat himself in despair.
The smoke cleared to reveal Broly and Vegetto, their fists still locked together. Broly's aura was green, and Vegetto's aura was gold and covered in lightning. The Legendary Super Saiyan growled and charged an Omega Blaster in his left hand. Vegetto brought his hands to his sides and began charging energy. "Big Bang..." Broly fired his blast. "Kamehameha!" Vegetto finished as he shot a blue energy beam. All around the arena, fighters were powering up to their maximums to resist the explosion they knew was coming. A Vegeta from another world became a Super Saiyan, but Nappa, who had no such defense, followed in Frieza's footsteps and soiled his armor. "D...d...damn it!" he shouted, furious with himself.
Finally, the blast exploded, sending fighters flying. A Cell Junior rocketed into the air, along with several aliens who looked badass enough to be fighters but who would never be seen again.
When the blast was cleared, the arena floor was shattered and several people were strewn around it. Whether those people were on the floor for no reason when the blast hit and somehow survived or were thrown into walls and made some crazy rebounds to get there, we may never know. Super Buu looked with astonishment at the blast's power. "Gigantic..."
How can such a scenario be, you may wonder? How were so many dead fighters suddenly alive? How did those people get on the arena floor? And most importantly, how the fuck did Broly take on Super Saiyan 2 Vegetto and not die from his aura alone? The answers to two out of three of these questions will be revealed...