Dhampir

Dhampir are the result of evil necromantic influences, but they almost all arise from encounters with vampires. Despite this ubiquity, all manner of macabre bargains, necromantic influences, and encounters with mysterious immortals might have transformed or spawned a dhampir.
Poised between the worlds of the living and the dead, dhampirs retain their grip on life and yet are endlessly tested by vicious hungers. Their ties to the undead grant dhampirs a taste of a vampire's deathless prowess in the form of increased speed, dark vision, and a life-draining bite.
With unique insights into the nature of the undead, many dhampirs become adventurers and monster hunters. Their reasons are often deeply personal. Some seek danger, imagining monsters as personifications of their own hungers. Others pursue revenge against whatever turned them into a dhampir. And still others embrace the solitude of the hunt, striving to distance themselves from those who’d tempt their hunger. And when they do have to venture through town, they go through great lengths to hide their identity, and their hunger, from the common folk.
Every dhampir knows a thirst slaked only by the living. Those who overindulge their thirst risk losing control and forever viewing others as prey. Those who resist might find exceptional ways of controlling their urges or suppress them through constant, molar-grinding restraint. In any case, temptation haunts dhampirs, and circumstances conspire to give them endless reasons to indulge.
While many dhampirs thirst for blood, some gain sustenance from the living in more unique ways such as through spinal fluid, brain matter, dreams, or life energy.