I’d like the vampire to a kind of rush down grappler. But with some sort of blood meter like hisakos wrath and aganos’ rocks where the less blood he has the slower he becomes due to being more weak, he could gain blood from grabs etc. Basically the amount of blood he has determines whether he is a good grappler hunting for blood or a good rush down due to his energy from the blood of that makes sense
Vampires are all about magic and evasion, turning into a swarm of bats to teleport, lots of projectiles. Maybe give him a sword like a rapier or something fancy for when he gets in close. Plus the whole vampire/werewolf rivalry would be even better if he was the anti-Sabrewulf.
Could do some cool stuff like let him restore health by biting someone during his grab in instinct or something.