Draudo is distracted by focusing on the other young man, Aaman, and intends to destroy him. He didn't count on one more force, perhaps because he was already excited about the victory or because the other young man's movements were too fast. Obviously, Draudo's reflexes couldn't catch the attack.
Kaja's punch landed right on the dragon's head that was sticking out from the tip of Draudo's ego sword. The head and sword were shattered by a powerful blow that sent even Draudo bouncing and hitting the ground creating holes and billowing dust.
Draudo felt his back shatter from hitting the ground, the young man's punch didn't even hit him and only shattered his sword. The sword? How could Dragon Ego's sword fall apart? This is not possible?