C29 Dao Rune

As he grasped the long sword, a coldness crept up his arm, a chill that the room's sweltering heat could not quell.

The slender blade was etched with peculiar patterns on either side, which Ye Bufan recognized. One side bore the Gale Formation, designed to lighten the sword and quicken the strokes, while the other was inscribed with the Tiangang Formation