Yes, he had learned Yak's Spine Annihilation Sword Bone.
As long as it was a technique, it was something that could be learned.
At this moment, the finesse and efficiency displayed by Yak nearly made Gao Xin cry with envy!
Efficiency! Technique! These were areas where Gao Xin found it difficult to make groundbreaking improvements.
Up until now, Gao Xin had created many bizarre moves, but none could be systematized into a routine.
Because they were only temporarily useful, they were of no use to others, and even if Gao Xin used them a second time, the opportunity was gone, never to present the same miraculous effect again.
It was just like the current answer being correct, but the next second, it would be wrong.
This is the essence of the Dark Logic Battle Method, fundamentally a concept, a way of thinking, a philosophy, rather than a method of exerting force.
The truly reusable techniques had always been learned from others, like "Sky-shattering Object Explosion" for example.