Within the Spirit Land, Lu Ye rose to his feet and once again came before the Heavenly Mechanism Pillar. He linked his mind to Heaven's Mystery Vault, but this time, he was not there to buy anything.
He was there to upgrade the grade of his Crag Mountain Saber.
The Crag Mountain Saber was currently a Mid-Grade Spiritual Artifact with Eighteen Dao Restrictions. Only a few months ago, it had been upgraded from a Low-Grade Spiritual Artifact to a Mid-Grade Spiritual Artifact.
However, Lu Ye's cultivation had progressed rapidly lately. In less than five months since entering the Cloud River Battlefield, he had already reached Cloud River Tier Four.
He now had sufficient qualifications to wield a higher-grade Spiritual Artifact.
Under normal circumstances, cultivators in the Spirit Stream Realm used Low-Grade Spiritual Artifacts. Upon reaching the Cloud River Realm, they could switch to Mid-Grade Spiritual Artifacts. At around Cloud River Tier Five, they could replace them with High-Grade Spiritual Artifacts. As for Peak-Grade Spiritual Artifacts, those were generally used by True Lake Realm cultivators. Beyond that came Dharma Artifacts.
Although Lu Ye's cultivation was one tier below Tier Five, it was no great issue.
In any case, he had nothing to do recently and no need to fight anyone. This was the perfect opportunity to use his spare time to upgrade the Crag Mountain Saber, lest he have no time for it later.
Within Heaven's Mystery Vault, Lu Ye murmured softly, "Commission: Spiritual Artifact upgrade!"
He had done this before, so he knew the process.
As his words fell, his vision shifted, and he appeared in a small room. The room was empty, save for a platform before him.
Lu Ye began waiting there.
After he commissioned an upgrade for his Spiritual Artifact, an available artifact refiner still had to