[@Drag] I come from a D&D background so there was some unintended or intended building blocks from there, to be honest, my main inspiration was partly from the Hunter of Hunters in Bloodborn, mixed with the assassin doctor from Assassin Creed multiplayer, and later on, I decided to take pointers from the personality of the plague doctors a bit. In terms of trying things out and endlessly testing new tonics, potions, etc. 

She draws from a lot of sources, but I hope to really bring her into her own, specifically when it comes to her motivations. It might surprise some folks- assuming she's accepted once again. :P

Still, can't help thinking about how I want to develop her as a character.On the topic of D&D though, I did think about the rogue's sneak attack being something Drath could do to a degree representing her knowledge of anatomy. She'll still be terrible in any fight though, and I realize unlike DD AOE from her potions limits what she might actually be able to do in that regards. :P 

She's mostly meant as a support character anyway, also I did look in psychology aspect and found out the earliest equivalent were called alienist. It's a bit to close to modern era for my taste though since it did not really become a thing until the 19th century.