Jiang Li approached the huge rock spider and looked at its ugly appearance with a very satisfied expression.
With a flip of his hand, a hollow and sharp mouthpiece spear appeared.
"There should be some blood in such a huge spider's body."
He stabbed the spear into the body of the nightmare demon.
Black blood was forcefully extracted from it.
It was refined and purified along the thin hole in the spear. When it dripped out of the small hole at the end of the spear, it had already turned an acceptable dark red.
The Broken-Wing Black Mosquito's mouth spear innately had the ability to refine blood. After all, it was a professional Earth-rank artifact, and the effect was much better than Jiang Li's complicated actions back then.
This blood was gathered into a cold jade gourd.
It was not until the Cold Jade Gourd was completely filled that he pulled out his spear and stopped.