I've more or less finished up my statblock, but I'm not gonna be able to write up too much of a backstory before the midnight deadline. The last several days(since mid last week, really) most of my free time has been spent helping my mom get our house ready for both Thanksgiving, and a special open house style party this Sat to celebrate my Grammy turning 100 on Dec 3rd!!
I'll do my best to cobble together some important bullet points:
Knox was born among the Skarrin States, to a fisherman father, and mother who practised herbalogy. He heard the calling of Lees when he turned fourteen. While he worships and draws his power from the Shadow Master, he also pays homage and respect to Varan the Wanderer.
Joined an adventuring guild a year or so later, and on one of his first missions, infiltrated a smuggling ring. Turns out they were involved in humanoid trafficking. Upon freeing all of the captive slaves, he took up the cause of freedom fighter, swearing to never allow any sentient being to be owned by another.
Met, fell in love with, and eventually married an elf by the name of Morriana from Greengate. Morri, as she's affectionately called, is a witch of Tira, and as such the couple has gone on many a crusade against both the undead and aberrant creatures.
They have a home in Haven, but also spend a lo of their time aboard Knox's ship, the Windrunner. He leads a small fleet of good-natured pirates who also seek to end slavery and humanoid trafficking.
Finally, Knox is a high-ranking(or maybe leader?) member of one of the main adventuring guilds based in Haven. It also doubles as a begin thieves' guild, whose members aid those down on their luck or in need of help but can't afford legal aid.