Albreg

Albreg was a glabrezu, part of the demonic forces invading Avernus, the top layer of Hell.

He encountered the Spice Hunters when he killed Lulu, Edric's familiar. Edric met him again after the party completed a deal with a pit fiend, and as an additional reward, it gave them Albreg to do with as they pleased.

Edric chose to burn him alive.