‘Shudder is a stern tiefling rogue/fighter, originally hailing from the desert city of Calimpo

‘Shudder is a stern tiefling rogue/fighter, originally hailing from the desert city of Calimport. Stepping through a portal mirror, he descended into the Underdark alongside other adventurers to drive back the demon lords. Their quest was successful, but Shudder suffered greatly: He aged by thirty years in the span of a second, was driven insane multiple times, lost his halfling friend and apprentice Fargas Rumblefoot (who turned out to have been Fraz-Urb'luu, demon lord of deception, all along), witnessed the death of his god Kelemvor and - compelled by a demonic gnoll flail - gobbled down a chunk of the corpse of Orcus, demon lord of undeath. The Raven Queen, having taken Kelemvor’s place, saw it fit to separate Shudder from Orcus’ essence… by slaying him. Having been granted a new chance as an aasimar, he now serves her alone. 

Likewise caught up in the Raven Queen’s judgement was Dawnbringer, Shudder’s sentient sun sword. Her vessel - a golden hilt set with a brilliant ruby - was shattered, and Dawnbringer’s spirit now shares Shudder’s body. When called upon, she manifests as a blade of pure radiance in his hand. Both in the madness of the Underdark and beyond, Dawnbringer ever strives to be a relentless wellspring of cheerful hope for the often dour Shudder.’

Thank you Charredlore for providing the excellent background information, as usual :D! Commissioned by Charredlore (indirectly by one of his adventurers).