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.
Stark's Fervor can be switched out for Sword of Divine for more armor pen extra 100 damage every 2 seconds and the anti-dodge which is always good against a jax OR a frozen mallet to make you less squishy and for the slow OR a madreds if you need soem tank-eating power which is a good item for this build anyway since it gives AS and AD but i avoid it unless necessary because of the high cost meaning you probably won't get it especially with the other expensive items in this build. If you're REALLY having trouble avoiding damage grab a Banshee's Veil to block abilities and for extra health. the spare mana is always welcome as well. If you want a cheap item to finish it off with at end game a Malady is very viable. I Rush a Nashor's tooth because of the CDR and mana regen. Since this build chooses not to grab clarity mana regen helps ALOT.