Jax can carry the whole team on his back if you know how to play him correctly with items, timing, and strategies. Jax is a hard snowballer especially in top against autoattack dependent champions like Fiora, Master Yi, Aatrox, etc. He chases very well and has good mobility to avoid ganks and still come out on top.

Pros
Mobile
Good Chasing/Running ability
Very good at pushing a lane and destroying turrets
Counters auto attack dependent champions such as Aatrox, Tryndamere, Fiora, etc.
Good against shutting down ad carries.

Cons
Lol, there are no cons. Just a generally good champion.

Jax is very good working in bushes because the enemy cannot see a stun/jump on the way. Having that advantage of stealth can win lanes very easily. Always use the bush to your advantage!

Many players do not know this but Jax's jump (Q) can jump on anything targetable other than structures (turrets, inhibitors, Nexus). It's not just wards, minions, and champions.
You can jump on J4's flag, ALLIED/ENEMY champions, Elise's spiderlings, Annie's Tibbers, Malzahar's voidling, etc. Why know this? This can be a very good way to close gaps gradually if the jump's range is too short as well as escaping ganks and getting better distances like jumping walls to steal baron. Use to advantage to get kills and reduce death.

Jax's stun/dodge (E) can be triggered a few seconds earlier. Just like Lux's e, it can be triggered earlier so enemies have less reaction time. Jax can use this to reduce cooldown of the dodge/stun and jump stun his enemies quicker. By doing this, enemies have less time to flash or evade the stun which will allow more damage afflicted to them.

Last important tip, increased auto attack damage (W) can reset auto attacks to try timing your attacks just right in order to decrease cooldown and reset time and increase damage!

Having the ultimate passive and having a sufficient amount of attack speed will allow good farming and pushing throughout the game. I suggest Ravenous Hydra and BORK for quick farming.
Remember: farm>kills (off same person) ~SUFFICIENT GOLD IS THE KEY!!!~

Hi, this is my first guide I ever made on League of Legends. I chose Jax first because he is a champion played a lot and gets fed a lot as well. I'm always open to constructive criticism so both you and I can improve our League skills. I honestly hoped that this guide helped you because I use this build frequently and usually get a good scores. Comment on anything you might take out or add and I will definitely learn from YOUR judgement and opinion! :)

-KingDan
12/7/13

RIP Nelson Mandela