Warlock-knights (warknights for short) are a class of warrior equally skilled in the wielding of both weapons and magics. Their ability with the latter in particular comes from the fact that each one has made a pact with a powerful spirit called a bodhi, which is bound by both oath and blood to inhabit the warknight's weapon of choice, the form of which warps to better reflect the bodhi that now resides within it. The bodhi itself harnesses the magical energies of their world and, acting only as a conduit, bends them to the will of the warknight.

Jerek is not a man who is easily ignored. Tall, powerfully built, and with strong features that are rarely not glowering, wherever Jerek goes, he is noticed. He has the tanned, weather-beaten look of a seasoned adventurer and he is regularly taken to be older than he truly is. The frown-lines that scar his face and his unkempt black hair, cresting in a widow's peak over his high forehead, add to his apparent age. He has the carriage of a man for whom every motion he makes is deliberate, not in strength restrained, but simply well controlled. When he looks at other people it is with his expression pulled into a scowl, as if he finds their presence distasteful.

Though Jerek is obviously a man of strength and power, the possessions he wears and carries look scavenged and mismatched, confusing his status in a world where people are used to identifying the standing of others at a glance. The imp commonly found on his shoulder tells people he should be a mage, but his greatsword identifies him as warrior. He does not wear a soldier's heavy platemail, however, but the thick leathers that are a more everyday kind of armor. A travel-stained green cloak hangs on his shoulders, reinforced bracers protect his forearms, and his belt hangs heavy with pouches, carrying cases for delicate objects, and a skinning knife.

Most incongruous are the crest on his belt buckle and the bronze medallion around his neck. The crest is that of a family not Jerek's own -- its engraving reads "Tolore", not Aers -- and the medallion identifies Yli, the Joyful One, the God of happiness and spreading joy to others. Jerek's standoffish demeanor is the only evidence necessary to prove that Yli is not his personal diety.

As unapproachable in demeanor as he is in appearance, Jerek is standoffish and deals with others only professionally. If one is offering him work or is a merchant he needs to buy from, he is perfectly civil, though neither warm nor amiable. If one is looking for someone to chatter with and befriend, however, Jerek will shut them down and ignore them. The only other person he seems to care for is Grig, though observers simply cannot understand how such an unfriendly man can put up with the antics of the bumbling little imp. Seen by many and understood by none, Grig and Jerek's sentient sword, N'serric, may be the only living souls that know who Jerek Aers truly is.