New Mob idea: Vampire

i have an idea for a new mob that i, personally think would be great. Imagine a vampire. It only comes out at night or in really dark areas, same as the current spawn patterns. When it appears it will attack and if it bites you you get "vampire affect" this essentially will turn you into a temporary mob and can only come out at night/dark or take chance at the risk of severe burning from sunlight. villagers will run from you and iron gollums will attack you. You could cure this by drinking milk like normal or even potentially have another option for a cure like a potion. maybe when you are a vampire, you can only eat raw food and not cooked food? and there's the potential to add another crop, garlic, which works as a vampire deterrent much like cats do with creepers. you could also add the potential of a mob drop for them. Potions like health, night vision or speed or even a new drop altogether if there are any good suggestions for that.