The weakened Perfected Nine Revolutions were all fallen, leaving only a few strong ones among them. If they intended to surround and kill one of these strong Perfected Nine Revolutions Grand Yan Immortals, it would take them a considerable amount of time.
After all, battles between the strong, lasting tens of thousands of years, were quite common. When the difference in strength wasn't significant, swiftly killing an opponent relied on grand formations or burning divine bodies.
"Hu Qing, I will lure them away while you hide in the grand formation. Remember, once I enter the formation, be careful when controlling it not to harm me," Jian Wushuang instructed earnestly.
Even though this formation was a simplified version, it was still immensely powerful. Only by combining their strengths could they barely hold it. Hu Qing was the only one who could operate the formation, and controlling its power was challenging. Any misstep could backlash and harm both of them.