Zhou Tian's beastman army was already on its way, but no one knew about it besides Zhou Tian. Therefore, these players still assumed Zhou Tian's previous performance was a desperate struggle before death. Zhou Tian only needed to stay in his current position, with the belief that these players would not become suspicious.
With Zhou Tian's military power, given enough time, his beastman army could encircle the area. At that point, Zhou Tian could set up a trap using his abilities. Regardless of the players' strength, they would not survive the encirclement of the beastman army.
The only problem for Zhou Tian was ensuring his safety. If the players managed to kill him prematurely, he would bear the loss.
Zhou Tian did not have confidence in his safety initially, his primary concern was self-preservation. However, now that he discovered that he could upgrade again with significant experience gain, Zhou Tian felt more confident.