Warlocks

The nature of warlocks’ power always makes others uneasy. Even the most devout celestial warlock has odd mannerisms and has sold part of his or her free will for power, something that a handful of people find unconscionable. Others are far more open with how sinister their patrons are, devaluing them in the eyes of others even further.
Great Old One warlocks are the most distrusted, and arguably the most insane. There is no way to avoid having some elements of one’s patron infect their thinking, and the chthonic entities which preceded the gods do not operate in any way fathomable to mortals. Their requests and bans range from mild to potentially deadly, though they’re nearly all incomprehensible in purpose. Warlocks who create pacts with Great Old Ones are as likely to hate each other as find common purpose, even if they follow the same entity, so they never gather in groups regularly.
Fiend warlocks have been the subject of so many myths and fairy tales that some wonder why they still exist as an institution. Though most aren’t so foolish as to think they’ll end their life with their soul unscathed, for many the price to pay is worthwhile; fiends offer power for favors in a very straightforward fashion, and fiend warlocks are most commonly motivated by revenge or feelings of impotence. Few find reason to gather, but those beholden to the same lords among devils will form coteries and gather on occasion.
Fey warlocks are too often dismissed as benign, though the madness of the fey can seep into their minds easily and often with no visible signs. Fey warlocks gather often, and many have elaborate courts of which they’re a part, forming societies within societies. (Fey warlocks are also the most likely to seek new applicants.)
Hexblade warlocks serve the Raven Queen, a mysterious entity whom many believe is the universal principle of Death itself, and that she alone is behind the many gods and goddesses of death (who are but facets). Her home and grand designs are inscrutable to most, but her supplicants travel the planes as grim knights errant, bringing death in their wake though often without malice. Some form coteries on occasion, and these warlocks are usually welcome at temples to deities of death.
Celestial warlocks might seem like the most benign, but the powers with which they make pacts are still too often alien to mortals. Ancient beings associated with the good planes or law are truthfully less frightening than their darker primordial cousins, but their expectations of mortals can strain the mind and body to their limits, making them more ruthless and exacting than gods are with their clerics. Celestial warlocks often appear haunted or haggard, and many can find that the demands of their patrons consider the lives of mortals to be completely irrelevant. After all, the souls of said mortals will move on to their final rest and not impact the balance of good and evil in the universe a great deal, so why would life on the prime material plane be weighed as more valuable than life among angels and demons? Celestial warlocks are the most likely to form coteries, and these are often a matter of mutual support.
Undying Warlocks serve the Neverborn (or more often, the most puissant agents of these eldritch creatures). Though all toy with the idea of undeath, the vast majority are content with their lot as living touched by death. Many live unnaturally long lives, which is astonishing given the relative lack of support they have in any civilized areas. Most are smart enough to avoid attracting the kind of notice they can’t handle.