Lin Wu's body was thrumming with power as he channeled more and more spirit qi into the attack. He was also synchronizing it with Shirong's Immortal Sky Shaker art and was assimilating the wind attribute spirit qi into it.
Once the energy reached a certain level, Lin Wu converted the spirit qi that he had accumulated in it to radiation. His innate skill radiation manipulation worked at full power as it was infused into the wind. This attack seemed to be similar to the Immortal Sky Shaker Art: Sundering Tempest, but its application was different.
If the Immortal Sky Shaker Art: Sundering Tempest was meant for a wide area, the current attack was meant for a narrow area but deeper impact.
By now, Shirong had reacher quite a height and it was now impossible for him to go any further. Not only was the spirit sword's grade not high enough, but the weight of the Immortal Crystal Armament was also too much for it to carry.