So, the backstory: this is a class played by Vin Diesel, the actor better known for his action roles involving Riddick and cars. He's a long-time gamer and recently Geek & Sundry posted a game session they held with him in which he got to play D&D 5E. They created a custom class for him based on the upcoming movie The Last Witch Hunter.
I'm not going to link to all that other stuff, but click here for the Witch Hunter 20-level class for 5E. It's pretty cool (but I couldn't say anything about balance issues or other stuff people worry about).
Vin Diesel and Jason Statham remain my favorite action film stars because they make being middle-aged and bald cool!