My Hero Academia: Rise of Ben 10, Book 1.

Collision Course.

"POW POW POW POW!!!" Humungousaur and Komodo Dragon exchanged furious and wild punches. Shockwaves burning from every hit. 

Neither of them were skilled combatants, relying mainly on brute strength of their abilities, with Ben only having been able to use Humungousaur a handful of times when he had trained for the examination.  Therefore none of them tried parrying or any sort of fancy martial arts.. no.. it was an all out fist fight and nothing more. 

Their fists smashed against each other's bodies.. flecks of blood flying from each hit. Humungousaur's powerful tough armored skin proving just as durable as the strangely shock absorbant muscles of Komodo. 

The earth shook in a miniature earthquake as the blows were exchanged. 

Humungousaur could feel his vision going blurry as the blows to his body and head continued to rain on him, but he didn't give up. He continued to land blows of his own, wildly smashing at the horrible man before him with all his might. 

The two combatants stood back panting.. 

Komodo was covered in bruises and blood was dripping from his mouth which showed several teeth missing. 

Humungousaur was less the worse for wear, but his armor plating was cracked in some places, and he had a black eye...  and he was having trouble balancing himself to stand still. Ben felt he probably had a concussion of some kind. 

"Gonna give up now?" Humungousaur growled almost dizzily. 

"Not on your life!!" roared Komodo with a laugh. "This fight is too fun!! This is the least boring fight I've had in years!!! Come on!! Kiddo!! Fight me fight me!! What is your name!? You must tell me your name at least!?"

"My.. name..?" Humungousaur growled. "I haven't decided on a hero name.."

"DECIDE ON ONE NOW THEN! I need a name.. a name to remember this boy.. no.. MAN.. by!!" roared Komodo. 

Komodo pulled back his fist, as a strange super heated energy began to envelop his muscles. "My quirk is known as Hyper Impact. My muscles are designed to absorb and redirect impact.. like a bunch of energy channeling springs with high tension. Of course I'm already extremely strong as a result of how they're biologically designed, having muscles that are like solid impact absorbing springs grants me a lot of bench pressing power.. but.. not only do my muscles cushion blows like a bunch of super strong sandbags, but the impacts I absorb, including the impacts of my own punches.. I can store in the form of heat energy, to supercharge all my muscles just once for one huge impact... an ultimate blow.. "

Komodo's eyes flashed with glee as his dragon tattoo started glowing orange from the heat coming off his body. "KIDDO! LET'S PUT ALL OF IT DOWN TO ONE LAST BLOW!!!"

Humungousaur gritted his teeth. Truth was, he had an ace in the hole. He could grow up to 3 times his own size, and have his strength grow in proportion to his size, becoming a massive threat with immense attack power, not to mention thicker armor. 

However,.if what Komodo said was true, he had stored in his fist right now the energy equivalent to Deku's last resort punch which was comparable to a punch from All Might judging from the wind pressure that had churned up, a few of Gwen's strongest attacks, not to mention a few hundred Humungousaur level punches. 

Humungousaur was strong, no doubt.  But if he went up against Komodo's last resort, even with his ace size change ability which would change the game against most strong foes, he wouldn't survive that.