Stormfused Weapon

Stormfused Weapons drop from the following mobs in Stormsong Valley:
 * Shipwright Turncoat
 * Brinebrawn Cannoneer
 * Stormfused Strikesmith

The item is also contained in the following objects:
 * Abyssal Spear
 * Harpoons
 * Thundershot Rifle
 * Tidal Blade

As a quest objective

 * Arms Deal
 * Ordnance Orders
 * Rearmament