Dropped by the NPC “Bernahl” at Warmaster’s Shack when killed. He’s a merchant in knight’s armor. Simply kill him in the Warmaster’s Shack. He will leave later in the game. If you missed him here you can instead find him in Volcano Manor and help him with his quest until he disappears. He will later appear in Farum, down the ladder from Beside the Great Bridge Site of Grace as a phantom and you can kill him there for the Devourer’s Scepter. However, this can be missed if you defeat Shardbearer Rykard before getting the weapon from Bernahl.