Taiji Diagram rotated slowly and released a terrifying Swordwill. It enveloped the entire place and tightly locked onto Yan Wushen's Qi.
Zhang Ruochen's aura was rising. He merged his Swordwill and millions of Precepts of Swordsmanship into Taiji Diagram so that he could unleash the strongest power of the Ying and Yang Sword Formation.
Yin Yuanchen silently sighed in relief and whispered, "So Brother Zhang still has such a trump card. Now that the Space Seal has been broken, there is hope to keep Yan Wushen here."
Based on his guess, the powerhouses in the Imperial City must have sensed that there were some activities here. No matter how powerful Yan Wushen was, he could not fight against many of the Celestial Court's powerhouses.
"Empress Chi Yao's Blood Dripper? It's not a bad Sword Formation."
Yan Wushen's eyes became serious.