C378 I also Know Formations

Yang Xuan felt delighted in his heart.

Just now, the little black under his feet let out a strange chirp, which attracted his attention. Then, he found a small gap behind Yang Huachen.

This formation should have been flawless, but Yang Huachen had modified it and integrated the other formations into it, causing its own flaws.

"The heavens are helping me!"

Yang Xuan said in surprise. Then