"This is a brand-new mid-grade speed magic artifact, made from the belly hide of an [Azure Wind Soaring Snake], an exotic beast rarely seen even in the Savage Wastes. Spiral sand, demon tree bark, and several other materials were incorporated into it before a low-grade [Light Body Formation] was inscribed upon it. It can greatly increase your running speed and agility."
"Furthermore, it was personally refined by a master of the Treasure Artifact Pavilion, so its quality is guaranteed. It is truly an essential magic artifact for pursuing enemies and escaping with your life!"
"The starting bid is one hundred and fifty low-grade spirit stones, with each increase limited to no more than five low-grade spirit stones. Bidding begins now. Please place your bids!"
Speed magic artifacts were uncommon because the magical power and spiritual sense of an ordinary mid-Qi Refining cultivator allowed them to control, at most, two low-grade magic artifacts or one mid-grade magic artifact at a time.
If they drove a mid-grade speed magic artifact at full power, they would have little capacity left to attack or defend with another magic artifact.
That was extremely dangerous.
They could only rely on talismans to protect themselves!
But talismans lacked sustained effects and required careful timing between uses. Moreover, using each talisman was like scattering spirit stones to the wind-far too wasteful.
Thus, most mid-Qi Refining cultivators chose mid-grade defensive or offensive magic artifacts. Market demand, in turn, influenced supply-
Leaving few artifact refiners willing to specialize in this direction.
As a result, "speed-type boot magic artifacts" were scarce, while refiners might simply choose to study the more valuable and popular spell boats instead.
One of the main reasons spell boats were so popular was that spirit stones could supply the power they needed. They required only a little