The Stormruler is a in Demon's Souls. In-Game Description A legendary large sword with a thorny blade, named for the one who calms storms. It is said the ancestors of the Shadowmen rended the storms and clouds in the sky with it. Now abandoned, with much of its power lost, it is an average large sword. Hoverer, if it is used in the monolith forest where ancestral spirits slumber, you may be able to reawaken its ancient power to rend the sky.