File:Cataclysm Trailer Deathwing Deepholm.PNG

Summary
Deathwing acquiring his new elementium armor in the official Cataclysm trailer.

Source
Screenshotted of the following video, cropped in  (that's right, I didn't even care to download the video!):
 * http://www.youtube.com/watch?v=Wq4Y7ztznKc