The sage of the Wang Clan once said, "The transformation of heaven and earth lies in height and depth; the way of saints lies in concealment and stealth."
Within these sixteen words was the essence of the Wang Clan's Yin-Yang Art , the Yin-Yang Masters would never openly confront others.
An unseen Yin-Yang Master was undoubtedly terrifying; not only Tang Luo, even if replaced by a Grandmaster, would be exhausted by those nefarious spirits.
Formations and divine arts are essentially means of borrowing the powers of heavenly spirits and earthly ghosts, and the only way to break them is through the martial tactics of the military strategists, seeking close-quarters combat.