Because the sound waves were visible to the naked eye, Shrek City's side was thrown into panic. In their alarm, all kinds of attacks were launched at the sound waves, hoping to block or neutralize them.
Some even tried to counter sound-wave attacks with sound-wave attacks, but none of it worked. Those attacks passed straight through the sound waves, unable to touch them.
The various sonic attacks launched by Shrek City were equally ineffective. They were simply not on the same level.
The attack Chen An had unleashed was one used by a god-level powerhouse. It was not something ordinary Soul Masters' sonic attacks could contend with, nor could sound-wave-type Soul Tools deal with it.
The Soul Masters who had launched sonic attacks suffered severe backlash. They fell to the ground convulsing, their brains feeling as though they were about to explode. Some of the weaker ones were even killed outright by the backlash.
"Stop! What kind of ability is it to attack mortals?" Yun Ming, in his soul state, was also glaring with eyes wide open. Chen An's attack had not yet reached Shrek City, but he could already foresee the scene.
An attack at the god-level was deadly to everyone in Shrek City, whether Soul Masters or ordinary people. It was bound to claim tens of thousands, perhaps even hundreds of thousands, of lives.
He even felt it was possible for the entire population of Shrek City to be slaughtered. That was why he was so desperate. If he could make a move, he would have fought Chen An to the death already.
But the reality was that he could not act. He could only watch helplessly as Chen An did this. He truly wished he were dead, for he could not harm Chen An. If only he