Seeing this scene, Wei Xiao Bei opened his mouth.
So strong!
The huge leg above the Big Tree Spirit seemed to be completely casted from an indestructible alloy.
"Zhilagasa!"
The foot landed on top of the Big Tree Spirit, causing the Big Tree Spirit to suddenly let out a strange sound. Along with the echo of its voice, a green brilliance exuded out from the Big Tree Spirit's trunk. In the next moment, it concentrated everything it had on the thickest root. Like a viper charging its power, it moved towards the exposed blue vein on the back of the foot, and fiercely pierced it.
It was not that the Big Tree Spirit had never targeted the vein before, but rather, the huge leg's defense was too high, so it simply could not pierce through it.
However, it was different this time. The tree root that was carrying the green brilliance unexpectedly pierced through the vein. Soon after, a green colored liquid sprinkled everywhere.