Even the formation that converts Spiritual Power requires a supply of Spiritual Power. The proverb "Even a clever housewife cannot cook without rice" means that even the design by the outstanding disciples of the Wang Clan of Tianan is unable to circumvent the fact that formations inherently require Spiritual Power.
Moreover, the greater the amount of Spiritual Power conversion, the more energy it requires. If there is no alternative source of Spiritual Power, could it really be expected that these wandering warriors could multitask so well as to maintain the formation and input Spiritual Power at the same time?
Of course, these conclusions were only deduced by Tang Luo after seeing the flow of Spiritual Power in the magical attire. Now he could understand why, when he faced Fan Yong at Snake Fang Mountain, despite the presence of so many Wuyi Sect warriors in the camp, they were unable to form a spiritual formation to resist the thunder.
