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 last three items are deathcap, zhonya's hourglass and lichbane, but I could not click the deathcap and hourglass :P (so those are the Zhonya's ring and large rod
This build works for me you could also go for CD reduction boots but I have noticed When I do pick those boots I lack survivability Which I get from the glacial shroud.
With this build I get away almost every time. Most of the time my stats are something like 5-10kills 0-2 deaths and 10-20 assists (sometimes the assists and kills can switch in quantity).
Try it out it works for me only problem I have is mana but you do not need mana that much as lux just return to base alot.