Rock Jade was a high-grade jade comparable to Array Banners.
It could withstand third-level array markings.
Just this small area...
Xu Xing took out the Yellow Jade Bracelet from his Storage Bag.
He played with it for a while and soon came up with a plan. He chose to inscribe a third-level spirit gathering array on the bracelet.
The area of a jade bracelet wouldn't allow for a large array. Moreover, the Yellow Jade Bracelet already contained a Sumi mustard seed spatial array technique within it. But a spirit gathering array didn't require much space.
Most spirit gathering arrays consisted of layers of arrays stacked together, achieving a qualitative change through quantitative accumulation.
A third-level spirit gathering array had only a dozen or so array marks, far fewer than the usual hundred array marks of general third-level array techniques.