| Category | Heroes |
| Region | Northern Hordelands |
| Class | 15th illusionist / 10th barbarian / 5th frenzied berserker |
| Race | Demon |
| Gender | male |
| Title | Lord of Kennel |
| Alignment | chaotic evil |
| Deity | none |
In the waning years of Yagamph Republic (746 - 956), a demon named Yack-Leban found himself summoned to the world of Bal-Kriav. Gnoll wizards of Howling Wind, with aspirations of glory and might, did this with an artifact called the Book of Infernal Secrets.
A master of deception and disguise, Yack-Leban came to his summoner's as a weak and simple demon. He showed promise and loyalty, adept at learning new things, like spell craft, and having an uncanny sense at devising deceptive plans for his masters. Over a period of 13 years, Yack-Leban earned the trust of a number of powerful shamans, Yagamph senators, and others of importance. One spring night in 951, Yack-Leban and his team of assassins set to murdering the Howling Wind and ending the last bits of control they had over him. Ten of the fourteen mages, the survivors escaping by teleport spells.
As Lord of Kennel, Yack-Leban sometimes raises humanoid hordes to raid and plunder the peoples around him. The more terrible of these armies are those led by death giant generals.
In 1126, using abyssal energy to corrupt the very essence of his test subjects, Yack-Leban created the Mughorzan.