C308 Sensing Eleventh Level

Zhou Yi cast a spell and allowed Huo Yu's broken body to control the newly born Refined Corpse. He also inserted a few complex Spiritual Qi talismans into the body. What Zhou Yi needed was Huo Yu's human learning ability. Not only did he need to be physically strong, he even wanted to nurture a corpse refiner that could cast spells.

Undead creatures could cast spells