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.
The build is pretty simple, I didn't add potions for the obviousness that different people play different ways and games also go differently so place potions as you see fit. Otherwise this build worked really well for me whenever I used it. The Nashor's Tooth may seem out of place but you get the much needed CD reduction, just a little more regen, AP, and you know what using your E to zap a wave of minions and then use the passive to quickly farm gold. With the atk speed from this you'll almost always get the passive off on all of them with one e. The rest is self explanatory. Have fun and give me your opinions!