The masteries are made after how I wanted them, they can ofcourse be changed. You can try this build out this build before getting the runes too. That's how powerful this build is! Thanks for the feedback!

For the masteries, it looks like you might have misplaced a point on deadliness rather than cripple. I'm interested in trying out your build, but don't have the runes to do it yet.

Please share your opinions on the build and what can be improved. :)