I have been thinking to post a thread for players to share they character's backstory.
It would be interesting to read some fanmade lorefriendly stories. So i'll go first.
(If there is a lore related problem feel free to say so)
Name: Akhkharu Mortifer
Class: Scourge Warlock
Akhkharu was actually born a drow elf named Xaranfein. He was a powerful wizard from a minor house of Menzomerranzan.
Although a drow, he always despised the spider queen Lolth and sectretly worshipped Myrkul. After the major houses found out about this, they ploted against his house. During the attack and total annihilation of his house, Xaranfein was captured and tortured by a priestess named Phaerres. After the many tortures he endured, Xaranfein was sacrifised to Lolth. As his soul was dragged into the Demonweb pits he fought back and due to his expertise with multidimentional gateways, Xaranfein managed to escape Lolth's domain.
As he was wandering though the abyss searching for a way to return to life and the prime material plane, he found himself in within the realm of Uridimmu, a Balor demon lord. The demon attacked Xaranfein on sight but during the battle recognised the drow's potential and decided to forge pact with him. As part of the deal, Xaranfein became a very powerful warlock and was sent by the demon back to the prime material plane on a mission. The mission was to find and bring a magical book that was in possession of a mad blue dragon named Asag'Musaginim. During this quest Xaranfein met another one of Uridimmu's servants, a tiefling rogue, Akhkharu Mortifer. Together they infiltrated the dragon's nest in order to steal the book, but in an unfortunate twist of luck they ended up waking the dragon as soon as Xaranfein took possession of the book. The dragon attacked them and a fierce battle occurred. However due to another twist of luck the Time Of Troubles begun making the magic very unstable and unpredictable. A spell went terribly wrong and a rift was opened killing instantly the dragon Asag'Musaginim and dragging Xaranfein and Akhkharu back into Uridimmu's realm.
As the demon took the book, he explained that within those pages there was a powerful spell that would allow the demon to travel between his realm and the prime material plane at will. Then the demon decided that he had no further use for his pawns and attacked them, however Xaranfein and Akhkharu prevailed killing the demon lord. Due to the demon's death Xaranfein lost many of his infernal powers. So in order to escape the demon's realm and return to Faerun he would need to use the spell from the book that Asag'Musaginim died for. However as the spell would only work for a demon, Xaranfein used powerful magic to annihilate the tiefling's soul and used it's released energy to extract his own soul and seal it within Akhkharu's body. The tiefling's half-demon blood not only made the spell work but also helped him regain many of his lost powers. Xaranfein returned to Faerun, but due to the unstable state of magic the tiefling's body gained a drow's lifespan.
Afterwards, Xaranfein secretly returned to Menzomerranzan in order to avenge his own torments and sacrifice. His plan was to assassinate all the matrons of the major houses that conspired against his. His plan however failed and Xaranfein was forced to flee the Underdark. He however managed to kill Phaerres and enslaved her soul to be his soul puppet. When he left Underdark, he became a wandering adventurer posing as the tiefling Akhkharu Mortifer.
In one of his travels across Faerun he found out about Szass Tam's master plan and became obsessed with the idea of killing the litch and fulfill Szass Tam's plan imself. So he boarded a ship to Neverwinter in search for Szass Tam's weakness.