Kabraxis is a demon that appears in The Black Road. He is also known as Banisher of the Light and the Thief of Hope. He has been upon Sanctuary for as long as recorded history, having been killed and banished multiple times. In an earlier incarnation, he was known as Iceclaw the Merciless and united a number of Barbarian tribes under his rule, before being killed by a warrior named Hauklin who wielded an enchanted sword, Stormfury, specifically forged to slay Kabraxis and rumored to be the only weapon that can do so. He is described, like many demons, to be massive and having black flesh, his body riddled with blue fire and his horrific face crowned with a nest of vipers, all bright and different colors of the rainbow.
Like many demons, he is an enemy of the Prime Evils, who fear him despite their superior power, because Kabraxis is extremely intelligent and quite patient and content with waiting throughout the centuries for his complex machinations to slowly unfold, while Diablo and his brothers are more confrontational in their methods and wage war openly in the mortal realm. His ultimate plan is to eclipse Zakarum on Sanctuary, replacing it with a religion that worships himself as the prophet and eventually enslaving all of mankind. To this end he has established several false religions on Sanctuary in the past. Such is the wisdom of his teachings that even after being revealed as a demon and ultimately banished numerous times, his tenets have been integrated into other religions and teachings over time.
In The Black Road, Kabraxis has already been banished and has been waiting for an unknown period of time, the runic portal to his plane of Hell, which he refers to as the Black Road, being buried in a long-lost city called Ransim. His wishes are fulfilled however, when his portal is unearthed and opened by an ex-Zakarum priest, Buyard Cholik, who has come seeking him in order to pledge his loyalty to him and offer to be his conduit to the mortal realm. This offer is accepted and Kabraxis is able to return to Sanctuary by anchoring himself to Cholik. He begins his plan anew by establishing a new religion in a Westmarch town named Bramwell, and hatches a complex scheme to convert the King of Westmarch himself in order to create an army of believers that he will use to fight Zakarum.
However, his plans come to an end when he and Cholik are killed by Darrick Lang, who is armed with Stormfury. In killing Kabraxis, however, Darrick becomes the next portal to the Black Road, his own body becoming a demonic host that he is only able to keep in check with the aid of Stormfury. Kabraxis, reduced to being just a voice in Darrick's head, taunts him in the hopes of one day driving him to suicide or defeat, which may be enough for Kabraxis to return yet again. Darrick however, discovers he now has access to Kabraxis' mighty powers, and, deciding to be a force of good, uses them to become a healer. The future of Darrick, and Kabraxis, are uncertain.
Kabraxis en toda su gloria.