However, Xu Yang had anticipated this, not only was his Dao Heart firm as iron, but he also had the Wisdom Sword to Slay Demons. Coupled with various protective attributes as well as the Way of Taiqing and the Supreme Skill, even the Desire Heaven Sky Demon found it difficult to endure his heart, let alone control his desires, transform his heart demon, or conjure various illusory demonic forms.
Though the Desire Heaven Sky Demon was cunning, that was all it was - cunning methods. Its direct combat power was not as strong as that of Great Brahma or Bhurlo Heaven, therefore among the Three Heavens, it was relatively the easiest target, and a major breakthrough in this battle. The saints would not have sent it otherwise.