At the time, Zhou Tian's plan was to fix his own timeline ten seconds into the future. In this way, Zhou Tian's people would appear in the world ten seconds in advance. During these ten seconds, whether Zhou Tian disappeared or died, per the rules of the time, he would reappear alive where he had originally been.
Honestly, despite this ability seeming inconspicuous because it involves the world's time rules, even if it appears insignificant, the difficulty of using it is incomparable to Zhou Tian's previous tactics.
It can be said that according to Zhou Tian's current level of cultivation in the time domain, he himself did not have even the slightest confidence that he could use that technique successfully. Therefore, Zhou Tian was essentially gambling. If he successfully used that ability with the help of the time domain, he could survive.
However, if Zhou Tian ultimately failed, he would be reduced to ashes by the self-destruction of that Corpse Demon.