Great Vampire

The Great Vampires are massive humanoids from Gallifreyan legend.

The Great Vampires are colossal humanoids with grey skin and wings. Like the other vampires, the Great Vampire require blood to survive, but due to their large size they need a lot more. Great Vampire are extremely tough and powerful and one could suck a whole planet's inhabitants dry. They have ability to absorb energy, such as from weapons and are able to survive repeated wounds. The only way to kill one is to stab them through the heart, usually with a iron stake.

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, it was at a great loss, and even then the leader escaped into E-Space. After time, the records of this war were lost and passed into legend. (DW: State of Decay)