Matchups you should dodge or avoid if youre not confident on jax:
Malphite, Quinn, Poppy, Shen, Kennen, Jayce

Matchups that you should win hard:
Kayle, Camille, Kled, Wukong, Rumble, Mordekaiser, Aatrox
Matchups you can win but you need to play correctly:
Fiora, Teemo, Gnar, Akali, Darius,
Matchups that are not so cool to play against :
Urgot,Shen,Riven,Singed, Tryndamere

Almost against every melee matchup you look for cheesing the opponent Lvl 1 with your E you start a trade press E and run him down, the more minion autoattacks you block the more damage your E will do! You look to Slowpush the first 2 waves( You can look for a LvL 2 All in if you get lvl 2 first to get firstblood or a flash) and hardpush the third wave so it crashs under the enemy turret. Once it crashed you can wether reset to take a free backbase or rotate to your jungler in river if he is doing crab or looks for an invade on enemy buff to cover him.
Your first Base would be Dorans Blade in most cases or Dorans Shield against matchups like Teemo, Lillia.

Akali Matchup:
https://www.youtube.com/channel/UCdibAmZlLfZ9r_AXCLyr17A (Youtube video)
I have heard that many People struggle with that matchup the key is to bait out her Q by walking up to a minion and backstep so she wastes her Q in the Air and then you can look for a trade. You dont want to trade akali in the shroud. If you Q-AA-W her she will press shroud and thats the moment you run you need to hold your e because if you dont she will just E you and connects to you once your E runs out and kills you.
If you have sheen first base its really good for you because your short trades (Q-AA-W) deal insane damage to her). You should instantly pop ult when she engages with R on you.
If you have second item Wits end she should never ever kill you again unless you giga **** up. (In that case ****ing up your E)

Darius Matchup
Ideally you walk up and trade him with Auto Attacks and W, once he Pulls you you can gapclose with Q-E and run him down the lane. You always want to look for dodging his outer Q because that is what is winning him the matchup. If you manage to flash into him to dodge his Q it might win you the fight! Dont look for fights when he is freezing because he can easily ghost you down.

Range Matchups in General:
You can try to cheese them by going in the bush lvl 1 and if they walk up too far to get a minion you take a heavy trade with your e and back of.
You might get an early kill early on if you do that and play it out right.

And in General you should NOT really walk up if the wave pushs to you unless you want to lasthit, but immediatly back off after getting it since you dont want to get poked down.

Feel free to follow me on Twitch to ask questions and see me play Jax
https://www.twitch.tv/amusingsailor
https://www.mobafire.com/league-of-legends/stream/kreiselficker-9223
You can ask channels and join my discord Channel for further Jax discussions if you want to :)

So here we are at the Combo Guide on Jax
Jax doesnt have too many Combos the most basic Combo you can do is
Q-AA-W this combo is an effective short trade combo which is useful if you have a Sheen for example and play against an Akali you do that combo she loses 40% HP and you back off and do that over and over till theyre low enough to kill them.
E-Q-E2-AA-W this Combo you can use against low HP targest to instantly kill them without giving them an opportunity to trade back.
When you hit level 6 you can AA a minion and then jump onto an enemy doing Q-AA-W for getting W,Sheen Proc and Ult extra damage onto the target off!


General Tips
Playing around your Cooldowns is essential on Jax especially in teamfights! Since the removal of Spear of Shojin you actually need to take care of your Cd's and start to stall fights a bit out!
You want to sidelane till you have 3-4 Core items and then you might look for Joining teamfights, because you will be strong enough to dominate the fight and 1v9 the game!
If youre ahead early game and have for example Trinityforce and Witsend you can also start to take fights already if they are in your favor, dont underestimate wits end heal its pretty insane and synergises really well with Last Stand in your Runes.

You can obviously wardjump over walls and to dodge skills or just to escape!


Matchups you should dodge or avoid if youre not confident on jax:
Malphite, Quinn, Poppy, Shen, Kennen, Jayce



What do I do Mid/Late Game
You look for splitpushing bot when baron is up (when you have TP up) if you can force people down bot your team can start a baron and you might join them with TP or you even kill the people who come bot and its basicly inhib and Baron for your team. If you dont have TP you look for shuving the bot wave and instantly rotating into mid/river so you can be there for a fight if it breaks out.
You generally look for teamfights once you have 2-3 Core Items before I wouldnt really seek for teamfights especially not if you are behind.

If you look for a discord where you can ask questions to me and other Jax Players feel free to join my discord server. In there you are able to ask qualified people about their opinion. Or if you want to share your thoughts on whatever topic. ( Secret Tip ) There is also a Meme Channel :)
https://discord.gg/eHaSy95