Quick answer: Border Banner is in a chest about 75 m from the Young Master Lan’s Hideout bell, in the Village of Lu. It Soul Tempers the Bastion.
Where to get Border Banner
Border Banner is in a chest about 75 m from the Young Master Lan’s Hideout bell, about 14 m below it. The Village of Lu collectibles page covers the rest of the region.
Border Banner item description
The item card reads:
A battle standard that once snapped in the wind and sand along the border.
Yet why did the lands beneath its protection know neither peace nor prosperity?
Its effect line reads: “Used to Soul Temper the Bastion.”
What Border Banner does
Border Banner Soul Tempers the Bastion and no other weapon. It is one of several Soul Tempering materials, and each is tied to its own weapon.
The upgrade costs 5,000 Remnant Dust plus the Border Banner. You do the work with Myst in the Order’s underground tavern in Pangzhen. For the full process, read up on how to Soul Temper.
The finished upgrade is Fierce Reprisal. Its effect reads “Reprisal Shockwave unleashes one additional shockwave.”
