This Ash of War grants no affinity to an armament, but imparts the following skill:

"Barricade Shield: Skill made famous by Sir Neidhardt. Focus your energy into the shield, temporarily hardening it to deflect greater blows."

Usable on all shields.

The ashes are located in Morne City on the Weeping Peninsula (in front of the walls).

When you come here at night, you will encounter a night rider, and you can get the battle ashes after killing it.