The Soul Peeler was originally the Ghostly Artificer's dao treasure. It was a ghostly cultivator dao treasure. However, the Soul Peeler was unlike the other ghostly cultivator dao treasures. Its strength was because of the strong spirit designs in it. Its materials were also very strong - it was some alien aerosiderite. It was not a material found in the Jambu Realm.

And the usual ghostly cultivator dao treasure was forged with cruel methods. They devoured trapped souls to increase offensive powers. This was something that Wu Yu despised. 

It just so happened that he could use the Soul Peeler.

Compared to the Infernal Sky Pillar of Nine Fetters, it was much easier to form a blood bond with the Soul Peeler. 

And the key was that the Heaven Devouring Avatar could transform into the Primordial Spirit form, invade the advanced dao treasure and enter its interior spirit design world. This made things easier. 

Compared to the Infernal Sky Pillar of Nine Fetters, the Soul Peeler was just an appetizer.

Its immortal treasure spirit was a pitch-black male eagle. It was incredibly fast and fierce.

Under the double crash of the Primordial Spirit of Wu Yu's real body and the Heaven Devouring Avatar, the Soul Peeler...