The Ash of War, when applied to any melee armament, imparts the Heavy affinity and introduces the skill:

"Earthshaker's Leap: Soar into the air and forcefully descend upon the ground ahead, generating a potent shockwave that ripples in all directions."

Discover these battle ashes near the small golden tree, situated southeast of the perimeter of the Nimgfu Fog Forest.

To obtain these battle ashes, engage and defeat the dung beetles traversing the grassy area.