Moonclaw

Moonclaw is a silver longsword, crafted long ago by the eladrin and etched with runes that make it particularly deadly to shapechangers, such as werewolves.

Its wielder, Omaphara, was slain during the War of the Pelt and buried with the blade. When the Challengers of the Unspeakable found Omphara's spirit fifteen years later, she gave them Moonclaw and asked them to stop her husband from restarting the war. After fulfilling her request, they gave Moonclaw to soldiers from the city of Mithrendain.