Previously, Zhou Tian relied on the Crystal Bomb for attack, which indeed didn't achieve much effect. But now, with the battle reaching this stage, Zhou Tian certainly couldn't expect to defeat the Enemies solely with the Crystal Bomb's Strength. At that moment, Zhou Tian's own Strength was also time to be unleashed.
Even relying on Zhou Tian's True God Strength, he was enough to pose a corresponding Threat to the Enemies at that time, even without using the Crystal Bomb.
Now, with Zhou Tian using the Crystal Bomb to consume some of the Divine City's Ability, causing some defensive installations to not be activated in time, when he employed his own Ability, the Threat to the Divine City wouldn't be small.