Bang-bang-bang!
As the demon beast began to violently attack the trapping formation to reach him and the Stardusk Essence, that it had clearly sensed would be able to help increase its strength, Xuan Hao began preparing himself to escape with Huo Fen and Meng Jie the second the trapping formation was broken. Understanding very well that he stood no chance fighting the demon beast even in its weakened state.
Not to mention, even if he ended up getting lucky and killed the demon beast, it would take far too long. By the time the battle came to an end, the Land Creation Realm cultivator would be on top of him.