Its only flaw was its slightly weaker endurance, but it usually did not need defense in a battle. With its incredible speed and attacks, it would be able to overwhelm the enemy and achieve victory before its opponent could react to the situation. Why would it need defense?
Its surprise attack had been prepared earlier. It relied on the opportunity provided by the energy storm. It chose the Haughty Dragon Douluo Nan Gongyi because it could sense that he must have been the slightly weaker fighter on mankind's side.