The God Stunning Spike was just a simple way of using soul strength to attack the opponent's divine soul. It was not all that profound.
If Su Yishan were prepared beforehand, Ye Yuan would not even have succeeded.
After all, Ye Yuan only had middle-rank Alchemy Master soul strength; it was roughly the same as Su Yishan.
This attack of his took him by surprise.
Of course, divine soul mystic arts were not much to Ye Yuan. But in mortal countries like the State of Qin, it was absolutely an exceedingly rare existence.
Even if it was the crudest type of divine soul mystic art!
When the State of Qin's martial artists fought, they would not even think of the other party using divine soul mystic arts, because this thing was too rare.
Hence, martial artists who possessed divine soul mystic arts tend to succeed in sneak attacks.