Ash of War: Storm Blade | Elden Ring Wiki

Ash of War: Storm Blade is an Ash of War and Upgrade Material in Elden Ring. Ash of War: Storm Blade provides the Quality affinity and the Storm Blade Skill. Ashes of War can be used to modify the Skill of an equipment piece, or to apply affinities that modify scaling values.

This Ash of War grants an armament the Quality affinity and the following skill:
"Storm Blade: Lost skill of Stormveil. Surround armament with' shearing storm winds that can be fired forward. Can be fired in 'rapid succession."
Usable on swords (colossal weapons and twinblades excepted).

Ash of War: Storm Blade Location in Elden Ring

Where to find Ash of War: Storm Blade:

Ash of War: Storm Blade is sold by Knight Bernahl at the Warmaster's Shack for 1,800 .

Elden Ring Map Link.

Ash of War: Storm Blade can be purchased from Twin Maiden Husks at the Roundtable Hold after giving them Bernahl's Bell Bearing.

Ash of War: Storm Blade Elden Ring Guide

Ash of War: Storm Blade grants Storm Blade skill.
Ash of War: Storm Blade provides the Quality affinity, which balances Strength and Dexterity Scaling, and decreases Base damage
Ash of War: Storm Blade can be used with any affinity Upgrade.
Ash of War: Storm Blade can be applied to the following weapon categories, so long as the weapon allows skill replacement: Daggers, Throwing Blades, Straight Swords, Greatswords, Light Greatswords, Curved Swords, Curved Greatswords, Katanas, Great Katanas, Thrusting Swords, Heavy Thrusting Swords
The Second item that can buff this is the Divine Beast Head, a helm that has a special effect of 7% damage increase to all spells, skills and items with the word "storm" in their names and Increases strength and dexterity by 4 points each. Beyond the flat buff on Storm related things, its attribute boost will also empower this skill as the scaling effect will come to play. The Divine Beast Dancing Lion of the Belurat, Tower Settlement drops this Helm upon defeat.

See Shadow of the Erdtree Map [Video Location]. Divine Beast Head is associated with the Divine Beast Set. Choose to get the Divine Beast Warrior Armor, it doesn't have a storm buff but it should be suited for your Storm Blade Build.

Millicent's Prosthesis is another piece of equipment that may be suited for this Skill. Though unlike the other items does not directly buff the Storm Blade. It however does increase attack power and dexterity. Important stats to boos the maximum amount of output from Storm Blade.
The Fextralife Storm Blade Build is a very suited way of achieving the maximum amount of efficiency from Storm Blade. The way this Build works is that you'll buff with Golden Vow and Electrify Armament if needed while on the landscape, attacking enemies at range with Storm Blade, and dealing extra damage when they are in melee range due to the hit box of the weapon itself and the added Lightning Damage from Electrify Armament.