Just as Ji Yang had thought, Dimanxi did have some tricks up his sleeve; when he was young, he acquired some ancient tomes from Hua Country and only after studying them did he become a contemporary Feng Shui Master. Later, he even took as his master a Chinese Feng Shui Grandmaster in Nanyang, so, to be serious, he did possess some real strength.
Now, Dimanxi was still filled with regret. After discovering the Fengshui Formation here, he hadn't taken it too seriously at first, thinking it was just a general formation. He revealed many details to Feng Xiaozhi and the others to show off his capabilities, but later, after several investigations, Dimanxi discovered that the Fengshui Formation here was not a simple one but a special ancient formation, which redirected Fengshui to the formation's eye, and then gathered those energies to form an even more powerful force.
Perhaps this was the type of Formation used by the Qi Refining Practitioners of ancient times.