The undead king continued to roar at the sky, yet its body was already blasted to several pieces by the thunderous attack. Purplish black miasmic qi erupted from its body.
The miasmic qi filled the entire sky, almost forming into a dark cloud.
"A miasmic cloud?"
Lu Xuan frowned. If the miasmic cloud were to be condensed enough to form rain, it would be possible for any who touched the miasmic rain to be tainted by the poison.
That was the main method the undead king relied on to bring about chaos back in Lu Xuan's past life.
By spreading the miasmic cloud all over the place, many in a vast area would be tainted within a short period.
Lu Xuan performed a seal and manifested his Spiritual Qi into flames, which he then blasted at the sky, causing flames to spread all over the sky.
It took only mere moments for the spreading miasmic cloud to be reduced to nothing.