Desperation and Resolve

As the demons unleashed their berserk transformation, charging with renewed and terrifying ferocity, Angel Kevin observed the change with a deep frown etched across his face. He had witnessed many battles and strategies, but the desperation in such a move was not lost on him.

"To think that the demons are resorting to using berserk," Kevin remarked solemnly, his voice carrying a mix of concern and resolve. "This is a dangerous gambit."

The elder elves, overhearing Kevin's comment, turned to him with questions in their eyes. "What is berserk?" one of them asked, unfamiliar with the term but sensing its ominous implications.

Kevin took a moment to explain, his tone grave. "Berserk is a demon's trump card in which they burn their mana and life force to become mindless monsters with enhanced strength. It grants them formidable power but at a great personal cost, stripping them of their sanity and shortening their lives drastically."