[@Ink Blood] What is a Darkslayer? What is their place in the world, what does it mean to be one and does being one convey any special abilities or unique skills?

How common are they? If you said 'Darkslayer' to one of us would be know what they are? Is there an order of them?

When you say that you study the creatures you slay, does your character have an academic reputation? 


Edit: I hope that didn't come across as hostile, I really didn't mean it like that!