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.
Decent damage build but the goal is high attack speed and life steal. Your crit chance is covered by going into endless rage with low health (if you get into trouble) and this build allows you to life steal back up before using your bloodlusts.
If you do it right the game shouldn't last long enough to get your bloodthirsters, but if the game drags on these allow you to just desolate the opposing team and remain at good health while doing it.
Cleanse and ghost are more than enough to get away if you run into something that six seconds of invincibility can't handle. Never get caught over extended without Cleanse/Flash-ghost or at the least endless rage. This build does not give you the movement speed to get away otherwise, however using spinning slash through walls in the forests may be enough to save you from some teams.
This build is built for sticking out the battle even if two or three are on you. If you're having tank troubles, trade one of the bloodthirsters for a black cleaver or if it's early game trade malady for last whisper.
*I wouldn't recommend malady often but this build is all about maxing attack speed and lifesteal.