Dao artifacts required precious materials, but they were also engraved with fifth grade spiritual runes from a saint spiritualist. Spiritual runes that were fifth grade and higher were known as saint runes. The saint runes were also divided into greater, intermediate, and lesser categories.

Even the most ordinary lesser saint rune was rare because saint spiritualists didn’t usually grasp more than three lesser saint runes. As for greater and intermediate saint runes, they were only ...