The Council of the Black Harvest (previously called “The Council of Six Daggers” in the Beta) is a powerful, shadowy organization of 6 warlock trainers from around Azeroth and Outland whose existence was revealed by the book, [Legacy of the Masters]. They have presumably “unlocked the secrets of the most destructive forces to ever threaten Azeroth.” What this means is not immediately clear, but implies that this group has discovered some new powers in the wake of Deathwing’s fall.
Source : Wowwiki
After convening with her fellow warlocks on the council, Jubeka was partnered with Kanrethad Ebonlocke to return to Outland. Her journal was returned to Azeroth by her imps and given to trustworthy souls, who then passed it on to a warlock who sought to unlock the Codex of Xerrath. Her soulstone was shattered into four parts and left in the lands she visited: Hellfire Peninsula, Netherstorm, the Blade’s Edge Mountains, andShadowmoon Valley.
Her journal indicated her growing concern – and suspicion – of Kanrethad’s intentions. At the Altar of Damnation in Shadowmoon, she accused him of not only trying to control more powerful demons, but to essentially become one himself. Kanrethad confirmed this, and told her that the reason he had chosen her as his associate was so that if he failed and became fully corrupted, she was to banish him forever. She agreed, and accompanied him inside the Black Temple to discover how Illidan Stormrage had been able to control demons beyond the grip of the Burning Legion.
The warlock who followed her trail confronted Kanrethad at the summit of the Temple and defeated him; Jubeka fulfilled the promise she had made to banish Kanrethad, and now stands guard over him at the Altar of Damnation.
I decided i will only play theclass that i love most since my start of wow,Thats right : Warlock!