Whether it was alchemy, artifact refining, or formations, Luo Xiu's current mastery had reached the pinnacle of a grandmaster.

It didn't take him long to refine all the materials into their essence and integrate them into the Dao Gate, elevating this space-attribute treasure to the grade of a top-tier imperial divine weapon.

As for further enhancement in the future, it would require the intervention of an artifact refining grandmaster. Moreover, Ji Xiaozhi's current cultivation was at the God Emperor realm, and prematurely upgrading her life-bound treasure to the God Sovereign level would be inappropriate.

"The Xuantian Dao Gate excels in suppression and refining, but you also need a treasure for protection and survival."