The human race was struggling with a massive number of powerful demons in the demon armies. Yang Rai had used the conversation earlier to recover. The link between him and the Star Spirits was more in tune than ever before. It must have been a massive strain they went through healing the 2 Great Emperors and temporarily sealing the demon saints. Yang Rai stared down the army while a conversation with Li Wu Yi happened through a bead.
"Sir Li Wu Yi, have the army pull back and Recover. I'll keep the demons busy."
"Can you really do it?"
"Now isn't the time for questions. I need them out of the way."
"Very well, I'll have them retreat and prepare for another struggle."
"Good, I might not be able to hold them off forever but I'll whittle them down a great deal."
Now out loud.
"Follow the order and Retreat. Go back and recover your strength."
"DEMONS YOU HAVE INTRUDED ON MY HOME! AND NOW YOU KNOW DESPAIR!"
"AHAH, a mere Emperor dares to be presumptuous in front of this half saint?! FOOLISH BRAT."
"Come one or come all. It does not matter… WAY OF THE HEAVENLY FORCES 9 ARRAYS 9 FORCES. Star Spirit Art World Recovery."
The first ability began a giant array that surrounded the High Heaven Palace. Attacks of various elements would appear from random tears in space. Random moments in time. Suddenly artifacts would be refined into nothing better than waste. Earthen Ramparts would launch the demons back and around into all of these attacks. Lightning from the heavens would strike with the full force of a 3rd order emperor. All damage received was incredibly damaging. Elemental attacks were flying everywhere. It sent the absolutely massive army into a frenzy.
The second Array formed a spirit healing aura over the remaining territory of High Heaven Palace. It also provided reinforcement to the world's principles and slowly began to heal the damage. Yang Rai's Star Spirits were working hard. Everyone in the Palace started feeling as if their cultivation was recovering. After which they continued to cultivate thus forcing a recovery. It was not nearly as good as using medicines for the individual but considering that even the pseudo-Great Emperors were using it to recover as well this was one of the single best things Yang Rai could have done.
"You brat. You'll pay for this."
Dozens of Half-saints began rushing at Yang Rai. However, that was the dumbest thing to do in this situation. Yang Rai was after all the absolute best in bobbing and weaving a.k.a. Dodging was second nature to him. The only people who could touch him would be a Demon Saint. But even they may find it difficult while this spell was active. Yang Rai began to eliminate the half-Saints one by one as easy as breathing. Most of them had already been hit with many attacks by this point. So to Yang Rai this was easier than taking candy from a baby.