Rayek

"The barbarian prodigy Rayek is the inventor of the Helliquary, a wondrous device built to locate particularly destructive demons and trap their essence when they’re slain. Rayek hopes to use his creation to stop demonic incursions before they happen, and prevent the doom that came to his homeland from ruining other lands. When he finds demons too strong to be defeated alone, Rayek points entire warbands of capable adventurers in their direction. Though unstable, Rayek’s first Helliquary—the Wrathborne Helliquary—may well prove capable of funneling the power of defeated demons to a sufficiently daring subject. The risks of such a process remain unknown."

- Character description

Rayek is a young that hails from Mount Arreat.

Biography
A prodigy, Rayek survived (or was not present for) the destruction of Mount Arreat and subsequent devastation of the Northern Steppes.

In 1270, he was in Westmarch, where he met Deckard Cain and Charsi.

In-game
Rayek is an NPC in Diablo Immortal. He is found in Cain's Workshop after players complete the main Bilefen questline. He forms part of the introduction to the Helliquary.

Development
His name was originally spelt "Rayoc."