Great Vampire

The Great Vampires were massive humanoids from Gallifreyan legend. They came from the Dark Times.

Physical Description
The Great Vampires were colossal humanoids with grey skin and wings. Like lesser vampires, Great Vampires required blood to survive, but due to their large size they needed considerably more. Great Vampires were extremely powerful and one individual could drain a whole planet dry. They had the ability to absorb energy, such as from weapons, and were able to survive numerous minor wounds. The only way to kill one was to stab them through the heart, usually with a iron stake. More powerful Great Vampires needed to have their heart fully destroyed in order to kill them.

War with the Time Lords
The Great Vampires suddenly appeared in the universe, causing mass destruction and chaos. The Time Lords hunted these creatures down in a long and bloody war, using bowships to pierce their hearts. Though the Time Lords won, they incurred heavy casualties, and even then the leader of the Vampires escaped into E-Space. After time, the records of this war were lost and passed into legend. (DW: State of Decay)

Other information
Great Vampires created the Vampires from Earth. (EDA: Vampire Science) They may be one and the same as the Yssgaroth (FP:The Book of the War).