SPOILER WARNING: The video below contains spoilers for World of Warcraft: Cataclysm. If you do not want to be spoiled, do not watch the video.
We've known for awhile now, through datamined files and beta snoopers, that the Life-Binder herself, Alexstrasza, does battle early on in the expansion with Deathwing. We haven't seen it, however! Here it is, in all its cutscene glory -- Alexstrasza vs. Deathwing.
The video features Alexstrasza's son Caelestrasz, or Calen, coming to his mother's aid after a particularly brutal battle with the aspect of death. Cataclysm gets more and more epic every day, and the game's release cannot come soon enough.