Clearly, Zhou Cheng had also refreshed and acquired the Task to find the Divine Weapon, and this guy, true to his status as the First Player of the Dongchen State and the real Luck Child, had no shortage of tricks up his sleeve—actually possessing the treasure specifically for locating the Divine Weapon.
"Zhou Cheng is truly my lucky star. Originally, to obtain the Divine Weapon, I would have needed to spend Qi Luck, but now I can directly save five hundred points of Qi Luck."
Even knowing the general location of the Divine Weapon, searching for it in a vast desert was no easy feat. Even without spending Qi Luck, he would have had to use quite a number of Foreknowledge times.
With the appearance of Zhou Cheng, he didn't have to do anything and could simply wait until the end to reap the benefits.