Zhou Tian's strength in the Lower Realm was comparable to that of a Heavenly God, and in some special environments, even a Heavenly God facing Zhou Tian couldn't possibly be his match.
However, upon reaching the Divine Realm, having lost his original foundation of abilities, Zhou Tian's strength indeed diminished significantly. Even so, at that time, Zhou Tian's mastery of the Time Rule had already reached the standard of high-level Gods. Although he could not immediately achieve a breakthrough into the Heavenly God Realm, he was still not weaker than any God.
Thus, relying on Zhou Tian's strength, if he were to attack with full power, it would inherently be difficult for him to take down a God entirely. After all, among beings of the same level, the disparity in strength is limited; if the opponent were cautious in their response, no matter how strong Zhou Tian was, it would be immensely challenging to kill the other.
