Stitch

Stitch was an evil spirit type born in the Abyss. When it was born, it was puny, and its form was a puddle of flesh the size of a fist. It did not even have teeth or claws and could be called the bottom-most organism of the Abyssal food chain.

It still vividly remembered that its ascension had originated from devouring a section of bone fragment during its childhood. 

It was a section of bone fragment with Divine properties. Perhaps this fractured bone fragment had slipped out of the mouth of a random God, who was being hunted by a stronger existence.

The remnants of the Divine properties within the bone fragment allowed Stitch's life form to miraculously transform during its childhood.

Not only did it completely break away from its original life form, but it also strengthened its inherent instincts.

It could swallow and transform the flesh of all living bodies, turning them into a part of its own body.