Enchantment ID: paralysis weapon
Cast when strikes:
Captain Falx Carius of the Imperial Legion at Fort Frostmoth requests that the Nerevarine discover who has been smuggling weapons out of the fort to sell overseas. After tracking down the smugglers, and only if the Nerevarine chose to be accompanied by Saenus Lusius, they encounter their leader, Gualtierus Spurius, inside the Gandrung Caverns. The latter offers the axe in exchange for having his life spared.