Blox is twin brother to Blix and with Blix, Blox was born into one of the last Goblin tribes to inhabit the Tanglethorn Swamp. His mother was the tribal shaman and it was never known who his father was, but assumed to be the tribes Chieftain, after he took the boys into his estate after their birth.
Soon after their birth the raunchy old goat of a father abandoned and shunned the frail sickly boy, Blix, but did keep Blox. Blix was born with the disease 'black lung' that made him prone to coughing fits, wheezing and shortness of breath. Blox had strong lungs. Blix's condition might have come from their constant battling which started prenatal. Blox will take credit for the bad lung anyway.
Their mother favored Blix but that didn't bother Blox. Their mother instructed Blox as well as Blix but Blox did not get the full measure of the lessons as did Blix. Not that Blox cared. He was still better looking, smarter, and favored by their father. Blix became a potent and skilled witch doctor surpassing his mother in raw ability but not rank. Blox became a skilled, greedy, entrepreneur with a knack for casting spells and making people want to give him all their money.
His bitterness towards Blox increased when their father accepted him into their estates once again after the lousy slime laden rat killed their mother - not that the old crone didn't have it coming to her. In truth Blox would have liked to have done the same thing. He just didn't think to have done it.
He can be found wherever there's chance for gold - rarely is it ever honest gold.