Hello there! This guide is pretty much a guide to kill quickly and dominate a lane early game. Jax is an incredible champion with his leap strike and counter strike, a aoe stun. With this guide you will be able to dominate top lane easily depending on who the other champion is, in which case if that other champion uses basic attacks as a main source of damage, you're in luck.

I chose flat AD runes because that extra AD at the start will really help you early game, though it's not as good late game.

I chose those masteries because it gives the most damage and offensive skills which may save you're life at some point in a game.

The items are a typical build of an right click to win champion. The IE's passive is really helpful because along with the crits of the PD and IE you can have to around 50% crits and each crit does 250% damage. The frozen mallet is also helpful as with the attack speed you can almost always keep the enemy champion slowed and if they flash away you can use the lap strike to catch up to the enemy champion.

Pros:
Able to destroy enemy champions regardless if tank or not.
Aoe Stun
A leap, a tool for getting away/catching up
A good champ all game around
Cons:
Squishy
Requires alot of gold for the build

Farming is essential to jax. He would need the gold to buy his items and without any gold he won't be as useful as a Jax with alot of cs.