Perhaps due to the Night Wanderer's reminder, there had been noticeable changes among the black-armored guards in the manor these past few days.
Situ Jing, although not fully skilled, but he was indeed from a legitimate Taoist background, practicing the Three Pure Ones' teachings, which were the purest and most righteous of all.
It was impossible for the black-armored guards—to practice advanced Taoist techniques, but these men had fought and bled on the battlefield, and even ordinary spirits would avoid them.
Situ Jing selected an appropriate incantation for them, teaching them how to convert their killing intent into righteous energy, thus giving them the ability to suppress spirits.