When the influence of a demon, devil, or other fiend infiltrates the bloodline of a mortal family, tieflings are the inevitable result. Tieflings carry the sinister mark of the fiendish planes upon their flesh, and their specific abilities and physical qualities vary according to their heritage. Hellspawn are those who descend from devils, grimspawn hail from daemonic influences, and pitborn bear the influence of demons, though these are only the three most common among a wide variety of tiefling lineages.
Generations might pass between a fiend’s direct influence and the time a tiefling child is born. For those born to ignorant or fearful parents, childhood is particularly hard, but even those whose families accept and nurture them face fear and prejudice from society as a whole. In some cases, this rejection encourages a tiefling to embrace the evil within their heritage, though others carve out a place and live a fulfilling life despite the challenges facing them.