The Great Pillar Technique was a wood-type technique. It gathers the surrounding wood energy and transforms into a wooden pillar. The more the wood energy, the stronger the wooden pillar would be.
The wooden pillar could be controlled by one's thoughts and its destructive power is amazing.
The Great Pillar Technique was a High-Grade Immortal Rank martial arts skill, not inferior to Ye Xiao's First Style of Dragon Shattering The Heavens.
There were two other materials inside the old man's spatial ring that made Ye Xiao smile brightly. These two materials were Misty Cloud Stone and Two-Winged Silverfish Essence.
Ye Xiao became happy after seeing these two materials because these two materials were needed to break the second seal of the Three Style Life Seal on Sea Dragon Spear's body.
Sea Dragon Spear was originally a Top Grade Immortal Weapon but it was sealed with Three Style Life Seal by the previous owner of the Sea Dragon Spear.