Challenging the Formation

"Grade-9 Defensive Formation Dual Spirit Heaven Dominating Formation, set up by the old ancestor of the Zhang Clan. The formation harnesses the might of both dragons and tigers, and for this reason, it's also known as the Dracotiger Formation. The might of the formation makes it difficult for Saint 9-dan cultivators to overcome it. Flaws: No.1, it requires a high input of spiritual energy in order to sustain the formation. No.2, the heart of the formation is sustained by a Dragon Spirit and a Tiger Spirit. While this allows the formation to be more flexible to different situations, it also means that the formation will be swayed by the wills of the two spirits. No.3…"

Information concerning the formation surged into Zhang Xuan's mind.

All in all, there were seventeen flaws to the Dual Spirit Heaven Dominating Formation.