This card is similar to "Getsu Fuhma": they are both Level 4 DARK Warrior-Type monsters that destroy evil monsters by effect (this card destroys DARK monsters, while "Getsu Fuhma" destroys Zombies and Fiends) and are based on Konami game characters.
The characters these cards are based off of also fight demons and the undead in their respective games. More specifically, however, the clan is bound by divine legacy to fight Dracula specifically, and has done so throughout their entire history. (It seems more of a curse on their family than anything else; it turned out very badly for the one member who tried to defy it.)
Ironically, "Vampire Hunter"'s depiction is most similar to that of Soma Cruz, the protagonist in the modern day set series of Aria of Sorrow and Dawn of Sorrow, who is the reincarnation of Dracula post a final battle in the year 1999.