The Evil Poison Body, although a life-saving technique of the Ice Demon Elder, was damaging not only to the enemy but also to oneself, bringing substantial self-harm. He would not use it unless absolutely necessary.
Now, at the cost of draining his own lifespan, he was determined to ingest the Calamity Poison Pill, showing his deadly resolve against Ye Xuan.
Su Yumo's Yin Meridian Body was of utmost importance to him; he could not allow Ye Xuan to ruin his human Stove. Otherwise, once the Yin Evil Energy of the Ice Cicada Heart Devouring Gu was completely depleted, his ten years of painstaking effort would have been in vain for someone else's benefit.
Swallowing the Calamity Poison Pill in one gulp, it took merely a few breaths for the medicine's effects to mutate and fully manifest, spreading throughout the Ice Demon Elder's entire body's meridians.
