As soon as Felina heard the scream of High Duke Oris, she got alert. She instantly dropped down to the ground.
Just as she laid down on the ground, thousands of dark red needles came out of Nomag's body and flew in every direction, all around him. The needles were faster than lightning as they struck the barrier. Cracks started developing on the barrier, but instantly, another round of needles came.
The barrier broke, and the needles spread everywhere.
Since it was an attack of Nomag that was at a much higher level than High Duke Magna had assumed the battles to have, the barrier was broken instantly. If he knew that Nomag would use the skill he told him to not use before mastering it, then he would have used a stronger barrier, but he only used the one that he thought to be most appropriate.