Black Dragonflight (WoW)  

The black dragonflight was once nearly annihilated but has managed to survive the eons by hiding and breeding in the desolate wastes of The Barrens. Although the master of the Black Dragonflight, Deathwing, has been either missing or dead for quite some time, the remnants of these black dragons are incredibly powerful and delight in causing mortal suffering and death. They are the sworn enemy of all other Dragonflight aspects, particularly the red dragons of Lordaeron.

Wrath of the Lich King required!