The advanced dao treasure before his eyes was a long, silver spear. The long spear was buried in the ground and resembled a silver dragon. 

Despite being separated from the sure-death slaughtering spirit design, Wu Yu could still feel extreme power below the surface of this dao treasure. 

Countless spirit designs were carved on it, and the engravings were densely packed and numerous. The person who crafted this advanced dao treasure had definitely exhausted huge efforts. 

However, regardless of whether it was Wu Yu or others, they could only stare blankly at this advanced dao treasure. 

Wu Yu hadn't attempted to pry apart these spirit designs previously. Now that no one was stopping him, he took the time to fiddle with it for half a day. Yet he was still clueless about this spirit design. The truth was, the range of this spirit design was a sphere with the dao treasure at the center. Whether he attempted to go from above by landing from the sky, or from below by digging three inches into the ground, it wouldn't work. 

Whenever an object approached, it would be completely destroyed. It was the same for the grass and earth that was outside the spirit design. 

He moved several doppelgangers around to observe the situation. The grass field was still as it was previously....