ahahaa okay this is gonna get embarrassing
Car’son was originally Carson Regault, apostate elf mage.  I was in a dying Dragon Age journal RP at the time, and kept thinking of character concepts or looking out for PBs.  So when I watched Thor and got all infatuated with Tom Hiddleston (yes, I am one of those) it was all HEY THAT WOULD MAKE A PERFECT MAGE PB.  I might have stolen the kicked puppy act too, and played it straight instead of having it as a front because that is my weakness of weaknesses okay
But yes.  At the time I was 1000% done with the journal RP and just wrote threads privately with dangerkittyn/Tamara’s Dragon Age characters instead.  Carson was an elven Circle mage who was bad with healing magic but earnestly wanted to be able to heal people, and tried to study ways to do so without magic.  Borrowing heavily from mygoodrabbit’s headcanon about how limited non-magic medical knowledge is in Thedas, Carson’s sources and methods of learning this were really shady: Andrasteans burn their dead so bodies to dissect and study would have to be stolen, and the most accurate anatomical studies came from books on necromancy.  Eventually the templars started catching wind of this and suspected him of blood magic, and Carson feld the tower before they could make him Tranquil. Â
Car’son the Jedi’s version of playing with fire, so to speak, is his obsession with learning about both/all sides of the Force and secret refusal to limit his learning to just Jedi teachings.  And like mage!Carson, he refused to let his skills be limited to his Force/magic affinity.  And abilities like Noble Sacrifice and elements of the LS Act 1 JC storyline fit his willingness to risk his life and health to heal other people it was like the story was written for him.
One of the biggest changes over time is that initially he was going to be a Married to Science character with no romantic interests EVER, but then in a later AU he universe-hopped to he met dangerkittyn’s Arja, and it was so perfect and adorable that they usually get paired up in every universe they’re in.