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.
Start with Brawler's Gloves and 2 health potion. When you have enough money buy Avarice blade and if you can boots. Then buy Executioner's calling and finish Youmuu's Ghostblade. When you have 1850 buy B. F. sword and finish Infinity Edge asap. Your next item is Phantom Dancer, buy Zeal first then finish PD. If the game still lasts buy Last Whisper. If the game lasts forever you can change the Executioner's Calling to Bloodthirster.