Warlocks

Warlocks
Warlocks are the born from demons and humans, usually rape or deceit from shape-shifted Eidolon demons, disguised as humans or a human's loved one or object of sexual desire. Warlocks are biologically immortal beings. At one point in their lives, they stop aging—which point exactly will depend on their warlock parent. A universal trait among them are their warlock or demon marks, a part of their body that is strange or unique that identifies them as not merely human. These can be extra, inhuman body parts such as bat wings, goat feet, lizard tails, scaled hands or cat eyes, or differently-colored skin. Additionally, warlocks are unable to have children. Warlock pregnancy always results in stillbirth as they are crossbreeds and are thus sterile.

Warlocks are among the few Downworlders who can cast magic because of their demon blood; unlike vampires and werewolves, who were merely infected by demonic diseases. Because of their willingness to use magic when asked by mortals, usually for a price, even Shadowhunters work with warlocks, as partners or as hired specialists, to allow the Nephilim to make use of some of the demonic magic that their own powers and nature exclude them from. The language they use to cast spells is called Chthonian.

Nearly all warlocks are, to some extent, practitioners of magic. Some inherit more magical aptitude than others, and those who cultivate that aptitude may become quite powerful. The most gifted may find themselves able to study demonic magic and become scholars in the secretive Spiral Labyrinth, the central home of warlock magical research and knowledge. They have invented quite a lot of new magic, which is dutifully recorded and kept in the Labyrinth. However, while warlocks inherently possess magic, some are still born without it, and they are known as ifrits.