there isn't any real build yet as the highest vampire around on server 1
is Garlic lv 79
if you read the description of the vampire ,it should be able to wield assassin and mage gear but from what i have seen it can only equip assassin gear and one of the skills is based on agility (see undead army)
real physical attack skills are early on in the build rip ,bat strike piercing strike , arrogant strike and undead army on lv 80
so basicly i don't think anyone here has a real clue yet build your character and share
but look real good to skill descriptions : Curse Augment was changed it used to say that it would affect all curses but it didn't now it sais what it does , only increases the activation of pervious curse
good luck and happy gaming