The Bone Bladed Claymore

Prerequisites

 * You must be level 40 or higher to grab the sword to start the quest
 * You must have the A Key to the Past quest in order to start this quest. You do not need to have completed it, merely having the quest is enough.

Steps

 * 1) Kill Opalla, a level 42 ^^^ heroic gnoll shaman, inside Blackburrow. You can find Opalla directly south of the bridge, in the farthest room . He will spawn and attack you as soon as you enter the room.
 * 2) Examine the sword.
 * 3) Slay Redak, the Troll Warrior, a level 44 ^^^ heroic mob located in the chapel in Stormhold . Easiest way to get to the chapel is to go down the spiral staircase, go down the hall to the atrium and enter the door to the left of you, There will be a "pond" in front of you, take the path to the right and follow it down until you are in the room with the cavaliers. Go up the staircase and follow the hall that wraps around the room to a door that will be on your right.
 * 4) Examine the sword again.
 * 5) Re-forge the hilt and bone blade and make it one again.
 * 6) *In order to re-forge the blade you must have an ebon cluster
 * 7) *Go to Runnyeye and head down the path just past the bridge until you come across the first room with goblins past the archway, there will be another room with more goblins. Once you enter the room to the left there will be a small alcove and inside will be a forge and a anvil sitting in front of the forge. Inspect the anvil to reforge the blade.
 * 8) Examine the sword again. To get your sword you will need to slay 1,000 sentient beings.
 * 9) *This means any non-animal (humanoid). Skeletons work fine for this.The Graveyard zone next to The Commonlands, in Thundering Steppes, the Ruins of Caltorsis in Antonica, Blackburrow in Antonica or the Sprawl or the Ruins in Freeport are good places to do this if you don't mind the lack of XP. Orcs and goblins work as well, so feel free to visit Zek, Lavastorm or the Sinking Sands for some good XP (if you're not high enough to solo these zones, by all means go with a group). Lizardmen such as found in Feerrott are fine also. There is also a small island just off the shore in Antonica north of the Oracle Tower which has fast respawn (nearly as fast as you can kill them).
 * 10) *You may wish to stay in stormhold, for at least part, and simultaneously do Berik's Revenge quest, which requires killing 100 undead.
 * 11) Examine the sword again.
 * 12) Kill Gynok Moltar, the first wielder of the claymore. He is a level 47^^^ heroic mob, that spawns when you enter the room where you first grabed the Claymore on top of the spiral staircase in Stormhold.
 * 13) Examine the sword again.
 * 14) *If you have completed the Berik's Revenge quest you will have the option to strike the claymore with Berik, Sword of Thunder. Doing this will create the Electrified Bone Bladed Claymore. If you have not completed Berik's Revenge then your only option is to accept the Bone Bladed Claymore.

NOTE: You can now obtain the Electrified Bone Bladed Claymore after you've finished the original quest. By right-clicking on the forge in Runnyeye with both the standard Bone Bladed Claymore and Berik, Sword of Thunder in your inventory (but not equipped), you can choose to "Break Berik over the forge." Berik and the BBC will be removed from your inventory and you will receive the Electrified Bone Bladed Claymore. If you choose to do this, you cannot change the EBBC back to the other two swords, so please be sure of your decision.

Rewards

 * One of the following:
 * Bone Bladed Claymore
 * Electrified Bone Bladed Claymore