No one has mentioned it's a *** viking helmet guys! Doesn't get any better than this. Now you can pop out godly WSes whilst pillaging your favorite village!
Khalamari in Abyssea - Konschtat drops this. Immune to Lullaby and Repose, susceptible to Paralyze, Slow, Blind.
Unsurprisingly, uses standard Xzomit family moves, though Mantle Pierce can do alot of damage. Uses this more at lower HP, but it is absorbed by shadows