Lets see here...
Typical Vampire is suppose to be... immortal to the extent that if take too much hits and they have no blood they turn to dust. Because they are undead... (Bare in mind undead feels no pain, they simply die when their minds are destroyed or can no longer act) they no longer adhere to human limits and can use the maximized strength and agility of a human. The only way vampires can recover health is through drinking blood, which for the longest time was considered the life force of human. (It is... to an extent...) Since they are vampires they no longer regenerate normally.
The whole idea of vampires being afraid of sunlight and burns come from the religious sense that the sun is god's benevolent ray of hope. Since vampires are consorts of the devil and are beings brought back to earth when they aren't suppose to be there (so are all undeads) they can only exist where the sun doesn't touch, because if god sees them *aka sun ray* they will begin to be banished...
Elder vampires are able to channel the life force of those they drain (blood) to the devil to gain additional powers... The devil also wants more followers of the dark and thus vampires are able to convert other humans into blood hungry vampires.
A flowing river or body of water is considered a sending to the nether world and was one of the things vampires couldn't walk over, unless they want part of their powers taken away from them until they gain more by sucking blood.
Also... Water destroys corpses relatively fast in real life, and it probably brought on the superstition that if the dead is placed into water or onto water they would break apart.
Garlic... for some obscene reason it WAS believed that the only thing a vampire couldn't stand was garlic, because it supposedly (or believed to be) something that will force bodily fluids out of your body. A Vampire doesn't have any and only stores blood of those he feed and therefore would cry out blood if they could cry. Resulting in death if they were too close to garlic.
Another reason was that, garlic was suppose (don't ask me how they reasoned this) to stink more then corpses, and the only thing vampires can't stand was garlics because it stunk more then them.
-----
Well... instead of rambling on, on what else the vampire is weak against... lets put it this way.
Vampires are meant to be overpowered when faced against a mortal, unless trained to fight against them, abusing the weaknesses of a vampire. Even then a powerful elder vampire will always force you to fight them in their domain where the likelihood of you having a lot of advantages is little. While forcing their lesser vampires to bring him food.
VAMPIRES DO NOT FOLLOW A HIERARCHY SYSTEM, lesser vampires HAVE TO FOLLOW THE ORDERS OF THEIR SIRE. They don't do so out of honor, they do so because the greater vampire is obviously more powerful and can at anytime control or even force the lesser vampire to lose all his powers because the cursed blood flowing through the lesser vampire is from the greater vampire.
The only way lesser vampires can break free from a greater vampire is when he gains enough power to control the cursed blood on the equal level as the greater vampire. Except since the greater vampire can sense his lesser vampires at almost anytime, they usually don't ever let the lesser vampires become more powerful them him.
These are 2 good enough reason for why vampires should be a monster and not a player choice, for they would not be very balanced.
|