We really like how some sets were playing off of their new level 85 abilities, and we took this direction for the Death Knights as well. The new tier's "Dark Simulacrum" set copies the look of some of the other player sets in a dark look and uses their abilities against his enemies! Due to the popular requests of re-obtaining their old apprentice robes, we thought acquiring some of the look of the Timelord would satisfy the playerbase as well as intimidating the forces of Twilight. And we really, really like that helm.