C1588 Law crystal

Eh? What is this?

After Ye Dongfeng casually killed a Lich with green eyes, a rhombus-shaped crystal fell onto the ground with a ring.

The Lich that he had killed earlier seemed to be different from the one he had just killed.

While looking at the rhombus stone in his hand, Ye Dongfeng thought to himself.

He did not know what this rhombus crystal was, but after killing all the Lich