Mountain Lamp.

He was truly like a butterfly on the battlefield. He couldn't be boxed in, and he couldn't be suppressed because of the dragon heart. What the dragons didn't want finally happened. He reached their home plane after three short years of fighting. 

It was then that Legion-8 chose to hatch. Everyone within and outside the plane felt it as soon as he came into the world. It didn't feel like a living thing was being born. It felt like the universe was giving birth to a treasure. It felt like power was being reincarnated into a physical form.

The seemingly ordinary black egg that had been abandoned by its mother after not hatching for more than 10,000 years finally hatched. The shell cracked and broke apart. Light burst out from within as if trying to escape.

The mountain the egg was in was lit up from within. It became translucent as the light passed through it into the environment. The whole mountain became a lamp, illuminating the world.