During mist of pandaria I feel like I mastered the spec in my endeavor to defeat kanrethad and obtain the flames of xoroth. Sort of excited for the new challenge of learning destruction after never really feeling compelled to play it thanks to the cool green fire style that demonology had, which is now being deleted, so I'm destruction all the way. My favorite NPC tied to the class has to be jubeka, the character which we sort of followed on the path to the kanrethad encounter. that was the beta test / proof of concept for the artifact quest scenarios