As to why Yun Luofeng didn't do this from the start? That was because it took some time for her to imbue spiritual energy into the silver needle! Otherwise, a normal needle would be unable to injure Bai Ci's core.
Seeing the veins multiplying on his arm and gradually spreading toward his shoulder, Bai Ci's expression finally changed.
He deeply inhaled a breath and drew the long sword from a nearby imperial guard, slashing it toward his shoulder without any hesitation.
SPLASH!
Blood spurted into the air, the intense pain turning Bai Ci's complexion pale. He staggered back a few steps and forcefully thrust the sword into the ground to support his trembling body.
Seeing the puddle of blood in front of Bai Ci, everyone gasped. Just how much courage was needed for a person to mercilessly chop off his own arm?