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 was created mostly for my own access to the cheat sheet. The item build comes from a friend of mine, and the rest comes from a fantastic Vlad guide, Vladamir the Bloodied Impaler (AP nuke build) .