In the Cultivation World, there is a rule that, except for consumables such as Pills Talismans, the value of objects is always greater than that of people. Therefore, under normal circumstances, it's difficult for a Cultivator to possess Magic Artifacts and Magical Treasures that match their own Cultivation level.
This is even truer in the Southern Sea, where the smaller sects have shallow roots and resources are scarce. Thus, the Magic Artifacts used by these Cultivators often fall one to two tiers below their own level.
Take the previous Master Lingbao, Chen Yanqi, for example, in the late stage of Return to Void, ranking as a Sixth Rank Great Cultivator, he only had one Fifth Rank Superior Immortal Implement and one set of Fifth Rank Formations, a whole major tier below his own Cultivation level.