Vampires

Vampires are mobs that naturally spawn anywhere at night and appear usually in forests and inside caves. Like Skeletons and Zombies  the Vampire dies when exposed to daylight, and like Zombies will turn villagers into their own kind (Vampire Villagers). Vampires can be heard growling and hissing when near. Vampires can appear on any difficulty.

Behavior
The Vampire is aggressive only when hungry. However, if hit it will attack that person. The Vampire usually spawns in large groups of 7.It's only weakness is garlic. The player must hold Garlic on a Stick and the Vampire will leave. When it notices daylight it will turn into a bat. Unlike Zombies, Vampires prefer to attack outside than break doors and enter. You could try being friends and ask for some vampire blood or killing one to get there blood to turn your self.

Combat
The Vampire has massive speed. As well as it's ability to spread a massive Vampire plague, which spreads only on villagers and players. The Vampire also has the advantage of sensing mobs from a farther distance.When killed you receive a Bottle of Blood and rarely 1 or 2 rotten flesh. It has 15 hearts, and it's punches damage 2.0 hearts.

Get the word out
I think adding Vampires is a great idea for Minecraft and that if we where to get the word out on Twitter. Jeb_ would really think about this mob and might add it to the game. Please help spread the word!