of blood which he let fall into the mouth of the ox-headed skull.The Ox Head and Skull Demon greedily sucked the blood, its eyes grew brighter and brighter, and demonic energy surged all over its bod...A rainbow halo enveloped the surroundings.

The only downside is that it's too obvious and easily noticed by others, failing to achieve the desired element of surprise.

Please note: "cave, converging in the sky.After countless millennia of accumulation, as far as the eye could see, there was nothing but boundless Xuan Shuang Sha Feng, endless and uniform, a chilling expanse of pal...