C621 Qin Family's Number One Genius

Yellow-level Cauldrons could be used to refine low-grade heaven and earth treasures as well as ordinary magic tools. Rare magic tools could be used to supply half-immortal envoys.

Profound-level Cauldrons could be used to refine middle-grade Natural Spirit Treasures and Boutique Magic Artifacts, and Boutique Magic Artifacts could be used by ordinary True Immortal experts