The Legend of Ben 10: Book 1, Sentience.

Chapter 4: The Chase (Part 2)

"What the heck is that!?" Azula snapped as she glared at the footage on the monitor of the Shadow Wing. 

"Oh that's Ultimate Humungousaur." said Chris in a bored voice. "Huh, weird, so he kept the Ultimate thing with the new Omnitrix."

"Ultimate!?" snapped Azula. "Explain immediately."

"R-right." said Mia. "Some of Ben's aliens can evolve using something he called a Worst Case Scenario simulation. It simulates an alien's evolution after enduring millions of years of intergalactic civil war."

"I see, using Survival of the Fittest to create the perfect battle made organism." said Azula. "Incredible. Ben Tennyson is almost like a god in a sense isn't he?"

"W-well he isn't a god, he's a hero." said Mia. 

"Oh please Mia. Nobody gets that much power and gets away with only being a little kid's dream." said Azula. "It's obvious whoever controls the Omnitrix controls this war. We need him alive, and I doubt Lei Lei knows the difference between living and turned to a bloody stain."

"It's not like we can reign her in though." said Chris. "Not that we need to, look for yourself.."

Down on the ground, Lei Lei was furiously leaping at Ultimate Humungousaur, hurling lightning claw slam after slam at him, smacking Humungousaur's chin over and over.  

Shockwaves erupted as Humungousaur's head turned from side to side with each impact, but his body didn't even move. 

Ultimate Humungousaur looked down at Lei Lei as she panted, landing in front of him, her body crackling with electricity. "You done yet?"

"Shit!! Lei Lei almost forgot how strong those were!" Lei Lei growled. 

Ultimate Humungousaur let loose a powerful punch, and a massive shockwave blasted the earth apart as Lei Lei was sent flying through multiple trees, smashing them all to pieces and wooden splinters. 

Lei Lei rose from a nearby crater, her body crackling as her bones snapped back into place and her healing factor took root. 

But before she could fully heal, Ultimate Humungousaur's fists were morphing, shifting until they became a pair of five barreled cannons. 

"No way.." Azula murmured from above. 

The sounds of whistling missiles screamed into the air as rockets made of explosive bone fragments erupted from Ultimate Humungousaur's cannons and rained onto the field, blowing up with volatile force as Lei Lei was forced to dash at high speeds, barely avoiding the rain of blasts. 

Ultimate Humungousaur retracted his missile hands back into fists and he leaped high into the air, his muscular stout feet slamming down in front of Lei Lei, a shockwave knocking her back instantly. 

"Damnit! DAMNIT!" Lei Lei screamed as Ultimate Humungousaur grabbed her by the legs. 

"Alright!! Let's get ready to rumble-" Ultimate Humungousaur began right before multiple high intensity explosions erupted around him, and he was sent flying with a roar, letting go of Lei Lei. 

A few of the flotillas similar to Shivura's ship was closing in, and they were firing powerful purple plasma shells down at the area. 

Ultimate Humungousaur felt his durable armor crack and his body bleed as more explosive rounds sent him flying back further. 

"JEEZ!" Ultimate Humungousaur roared as he was forced to run towards the forest, blasts radiating over and over behind him. 

While their ships might not have been fast, their weapons were beyond anything Ben had expected. They were at least on the same level of a High Breed Warship with this caliber of firepower.