Alastor is the spirit of revenge. He wields a sword in which was broken in half. When the sword regenerates as a whole, the power of vengeance overpowers Alastor into a killing machine.
The earlier concepts I had in mind weren't quite working for me, I felt that maybe I could go in this direction with his design since I was having so many issues with him.
it'll still need work
Sketch was done at Anime EXPO