NOT EDITED YET

Cain don't have the slightest bit of intention to listen to Jarx. All of his focus and attention was gathered in trying to break the light dome

Unfortunately for him, it's not that easy

If he was at his peak, cracking this barrier would be as easy as breathing. In fact, he wouldn't even be imprisoned inside it in the first place

The problem was the state of his mind and soul

To come to the decision of clenching one's hand into a fist and use it to throw a punch, the person would use his mind

He must have the intent to do that and intent is something that required the person's mind to have

Since Cain's soul and mind was heavily affected when he held the sword earlier, moving his body has also become difficult 

It's like he lost a large portion of control he has over his body and his punches definitely wasn't as strong as before

Right now, Cain don't even dare use his own sword anymore as that would expend even more of his willpower