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.
So this is what I am using on Pantheon. However I don't use runes yet because I don't want to waste my Influence Points (I'm only level 11) and I don't have all those masteries (same reason). But this is what I hope to play sometime. Hope it's useful for you guys. Feel free to comment and tell me your opinion, especially about item build.