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.
I know, I know that Jana DPS particular criticism is a rather strange way of conducting. However, not once not twice I've played this build, and stats are kept within the limits of 38:0.
Overall you have to get used to that, the game is now more on the fight "even"than to help the team, however, is paying off. That led Jana is quite immortal.