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.
This build is based off ability spam and laneing mid. Laneing mid is entirely important as you will be able to hold your lane very well, and jungle while your minions are at their tower.
This will give you a higher level and more gold than your middle lane opponent. Giving you a huge advantage with the ability to gank very easily passed level 6.
More to come later.