Crackling in blinding sparks, Gu Fei sent his Palm of Thunder toward the guard's waist the moment he finished concentrating on his left hand. Just like any other lighting spells, the sound effect for this one was deafening as it created a shaft of electricity that arced forth. He thought to himself how disappointing it would be if the guard did not fall to the ground, considering how spectacular the visual effects for this spell were.
Obviously, the guard did not collapse to the ground so easily and it even quickly retaliated with a slash of its sword. Gu Fei turned his body to dodge the attack, and at the moment that he was about to counterattack, the guard used a skill. It was this one skill that caused him to feel the futility of challenging the guard, as he would have no way of achieving victory over an NPC with it.
This skill was something he had seen being used by unscrupulous players many times before: Holy Healing.