Lin Mu had long since learned that he could use the Earth Element to offset his vulnerability to the Lightning element. Of course, this wasn't directly possible and he needed for it to be connected to something much bigger than him.
In the current case it was none other than the entirety of the Spatial Plane's ground. As long as he feet touched it and he was directly connected to it, he could let his body channel the lightning into the ground.
Of course, this wasn't 100% effective, as the lightning elemental immortal Qi and Lighting Dao Traces still needed to travel through his body. When inside his body, they would affect his organs and meridians too, causing distress. Due to being grounded, the duration that Lin Mu was affected by this was minuscule.
But over time, the effects could accumulate. After all, Feng Baxing was not stopping and continued to blast Lin Mu to death with Lightning bolts.
