This Ash of War grants an armament the Keen affinity and the following skill: : NOTE

Ash of War: Swift Slash Location in Swift Slash: Reward for siding with Hornsent during his fight with Leda at Shadow KeepDungeon. This is an Ash of War Skill, associated with the Ash of War: Swift Slash. FP Cost: 16. Deals 10 stance damage uncharged and 20 fully charged This Skill is Chargeable Upon activation, the user crouches reading the weapon and slashes forward with both blades, becoming invisible during the dash, and leaving a damaging shearing vacuum shortly after. The shearing vacuum attack is centered behind the user's end position. If the skill is used without FP, the shearing vacuum does not occur. However, the skill can still be used for dashing, which can be used for evading attacks and traversing on lava or any other muddy terrain that would otherwise slow you down. The repeated slashes of the shearing vaccum can be used for inflicting status effect buildup. NOTE: This skill was changed with Decreased the damage and damage animation of the shearing vacuum effect of the skill.