Vampire Blood Rules...
Ok...here's what I have thus far for blood rules...I'll probably end up changing them and refining them....
Blood Rules
The fiendish essence of a vampire was not meant to inhabitat a mortal body, thus it requires constant influx of life giving blood to allow the vampire to survive. Unfortunetly, the heart of a vampire's body becomes the receptacle in which the fiendish essence is contant, preventing it from creating an untainted blood source, thus the vampire must steal the blood of other mortals in order to continue its existance. Typically, this necessity of feeding comes to the vampire instinctually. Sometimes, a vampire either will not be able to feed for various reasons or they choose not to feed because of their own morals. The bodies of vampires that do not feed, start to deteriorate as the fiendish essence within start to literally consume the body from within. Vampires who have gone this far risk becoming one of the ravenous undead, mindless vampiric monsters.
Vampiric Constitution
Vampires do not actually retain the normal constitution as a mortal character even though they do still have a constitution score. The vampire's constitution represents the available blood within the vampire's veins. (note: since the vampire's blood score is not the same as a mortal Constitution, it is not susceptable to circumstances and effects that damage or heal Constitution. Magical effects that bolster a mortal constitution do not bolster a vampire constitition, but vampires can raise their Constitution using ability score bonuses gained from raising character levels) Additionally, every two character levels a vampire possesses grants them a +1 bonus to their Constitution Score.
Blood Thirst
All vampires, at one point or another becomes a victim of the vampiric blood thirst. Every 24 hours, the fiendish essence burns off a little of the vampire's blood supply to fuel its dark power causing the vampire to loose 1d6+1 point of Constitution. A vampire is allowed a Will save (DC 15) to minimize the damage to half damage. If successful, the will save for the following 24 hours in increased by +5 (DC 20) and deals double damage (2d6+2). The damage and will save can be circumvented by the vampire feeding on mortal blood (requires at least 5 points of constitution.)
Vampire's who do not feed risk becoming ravenous mindless vampiric mosntrosities (I'll work on them and post them soon...it'll basically be a template....and the vamp, if a pc, becomes an npc..)...some older vampires are able to shut themsleves down into a state of stasis with their fiendish essence and brain basically falling into a deep coma of sorts...(more info later..as I write it..)
ok...so I need some opinions on these...i'm not quite sure if I hate them or love them...so I'll see what you guys think.
One thing I was definatly thinking about is Vampiric Constiution...My original thought was to make it +1 per level in a vampire class (Lesser Vampire, Greater Vampire..etc..) would that work better than +1 per every two character levels? Since a vampire's constitution (although different than normal ones) still deteremines constitution based checks and fort saves, they are undead so I want them to have high Con scores...and having it raise based on level kinda fits with most vamps genres..with the older vamps having being able to "use" more blood born powers than younger ones...
another thing I thought of is maybe allowing vamps to spend a Con point to heal 1d4 points of damage....