Everything

You’re more than just a vampire; you’re a wraith in vampire form. Your awareness of the realities of death enables you to spend half the regular experience points cost for increasing Necromancy Paths after the first point, and permits you to move between Shadowlands and Skinlands through the expenditure of a Willpower point. You cannot be controlled as a normal spirit through use of Necromancy,

but should other vampires discover what you are, you can expect to be hunted mercilessly. You suffer the same weaknesses and have the same strengths as a vampire, but if viewed with a power such as Aura Perception (V20, p. 135) the aura appears as a double-exposure, with a wavering, translucent humanoid shape merging in and out of yours.