Thunderfury, Blessed Blade of the Windseeker

Thunderfury, Blessed Blade of the Windseeker is the legendary sword once wielded by Thunderaan, Prince of Air. Equipping the sword awards the Feat of Strength,.

Background
Ragnaros the Firelord, and his lieutenants Garr and Baron Geddon, defeated Thunderaan, Prince of Air, during the war following the First Age of Creation. Ragnaros was unable to fully destroy Thunderaan’s essence, so he forced what little remained into a talisman of elemental binding and shattered it. He gave the two halves to his lieutenants. Ages passed, and somehow the talisman halves found their way into the hands of Highlord Demitrian, a follower of Thunderaan. He recombined the talisman but was unable to release his master. Instead, he did the best he could: He crafted a blade to serve as a vessel for his master’s essence.

Thunderfury is a vicious sword, crafted from elementium and containing a crackling electrical core that might be all that remains of Prince Thunderaan. The hilt is unusually long, wrapped in black dragon hide, and studded with small spikes of black dragon bone.

Source
Thunderfury, Blessed Blade of the Windseeker is the reward from the quest. It is the culmination of a challenging and very expensive quest chain.



The quest chain begins when you loot the Left or the Right half of the, which drop off Baron Geddon and Garr respectively, in Molten Core. Upon looting either of these, you must travel to Silithus and talk with Highlord Demitrian. He will give you the which starts the quest chain.

The next quest requires you to present the following items to Demitrian:
 * both left and right halves of the
 * - a 100% drop, assuming one has the quest, from Ragnaros, final boss of Molten Core
 * 10x - each bar requires 1  (from Blackwing Lair), 1, 10 , and 3.

Bring a raid with you when you return with the required items to Demitrian because he will summon Thunderaan, who promptly attacks you. Upon defeating Thunderaan, you receive a. Deliver this to (the now rather cowed) Highlord, and he will make Thunderfury for you.