Firstly, upgrade the treasure.
Su Yu took out the Nine Heavens Purple Lightning Hammer, then took out a ninth-grade essence and 73 strands of the Power of Law.
First, refine the ninth-grade essence into the Nine Heavens Purple Lightning Hammer, upgrading it to a ninth-grade treasure.
Then, infuse strands of the Power of Law into the just-upgraded ninth-grade treasure, continuously enhancing its quality.
The Nine Heavens Purple Lightning Hammer, after merging with the ninth-grade essence, immediately becomes a ninth-grade gem, and after continuously infusing the Power of Law, its quality and power keep increasing.
By consuming 50 points of the Power of Law in one go, the Nine Heavens Purple Lightning Hammer is promoted to a ninth-grade treasure.
Nine Heavens Purple Lightning Hammer (Ninth-grade): Treasure, a rare item that controls the Nine Heavens Divine Thunder Power.
