A forbidden technique that greatly raise one's power, but only very short period. When activated the technique causes blood to leak out of the body, creating a bloody mist around them. The body also transforms into something resembling a devil covered in blood. The technique also causes great harm to the body and will damage the cultivation for the rest of one's life. This is a technique of last choice that is used only in desperation.
This technique was used by Wu Yue during the Wugui Family's first attack on Glory City enabling them to escape the Ten Thousand Demonic Beast Array. It allowed Wu Yue, with the cultivation of a legend rank expert, to display the power of a Demigod.