To put it bluntly, Su Xuan's ability to achieve this is not only due to his exquisite judgment but also sheer luck. There is indeed a great element of luck involved because he needs to judge the speed and location of the blood flow, which he cannot ascertain. It was as if a blind cat stumbled upon a dead mouse, and in this move, the Huayang Acupoint Hand directly locked onto this guy. After being controlled by the Huayang Acupoint Hand, Dugu Lang feels worse than dead, even though Su Xuan helped ease his pain a bit. Now, he can only maintain his life without dying, but his whole body is in unbearable pain, lacking power.
"You... you're vicious!"
Looking at Su Xuan, this guy was already speechless. He never expected Su Xuan to be so ruthless, and he truly met his downfall this time.
