a mutated alligator or crocidlle

A MUTATED PURUSAURUS THAT LURKS IN SWAMPY WATERS IN NORTH AMRACA

Carl was once an ordinary alligator, however his fellow alligator peers made fun of him for having a weak bite...
So one day, Carl and his brother Bob decided to start going to the gym. After years of training and exercise, Carl became so powerful and muscular that no one ever made fun of him again...

now he kinda just hangs out

Legend has it, that a ordinary croc called Carl was laughed at by his brothers. Alone, Carl walked away from the swamp and found a nuclear factory. He entered the factory and was caught by mutated experiments. They put Carl in a container and mutated him, now a monster, Carl annihilated every single living thing in the factory, then Carl targeted the one thing he hated, his brothers. He ate every single one of them. After destroying everything, Carl realized one thing, he's alone again. Today, he walks the ARBS earth, searching for more foes and just one friend.

On a scale of 1/10, how is my Carl story?