Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
What this build is.
The story of this build is I wanted to try out Nocturne when he was free. I googled up a build and the first site was by colbycheese. His build was pure Tiamat. I was like WTH is Tiamat never seen a person put that in a build! I went into Co-op vs. AI and experimented with AD, Crit, AS, and Tiamat. This was the best that I have come for. THIS IS NOT A COMPLETE GUIDE this is a mere chance to get feed back on how to improve it. So PLEASE if you see something better please comment.