Huang Xianba's eighteen Yama Blade Technique moves were indeed top-class martial arts. The knife moves were cruel and fierce, and each attack was intense and crafty.
In actuality, with Su Chengyu's current strength, he could have instantly killed Huang Xianba with a single blow. However, in order to let Yu Yanshu learn through observation, he held back his strength to duel with Huang Xianba, waiting until Huang Xianba had finished demonstrating all eighteen Yama Blade Technique moves.
As Huang Xianba struck with his knife, Su Chengyu clasped his hands together, trapping Huang Xianba's long knife between them. Then, with a twist, he broke the blade that had been forged from high-quality steel.