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.
Panth the Ranked Champ
This is not a very tanky buld but it will give you some life as you get up in levels.
Start with long sword and just Spear Shot a few kills till u can get BF Sword.
Once you get to the point you have Madreds you should be a killing machine.
Last Whisper and Phantom is a plus but not a core item.
Your Core items
Boots of Lucidity
Anything else is Optional depending on the situation.