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.
All you need to know is group turrets near each other. Then stack up AP and MANA. Then you shouldn't die but its harder than that you have to remember when ever you get more AP to rebuild your turrets so they can get more health and deal more damage. Remember they changed him so you can only make 2 turrets now at a time.