The Earth Emperor Crystal was born deep underground and was formed from absorbing the essence of the earth for hundreds of millions of years. Its material is extremely tough and it possesses an abundance of Origin Magnetism and gravitational laws. It would be more than enough to refine a fourth-grade earth-attribute immortal tool.
Appearance[]
It was a yellow crystal about the size of a millstone placed in the jade box. Countless rays of earthen yellow light swirled and flickered around it, and an extremely dense wave of Law of Earth was emitted from it. The gravity near was also affected by the crystal, making it several thousand times heavier.