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Jax Build Guide by RTO

Top [11.15] RTO's Challenger Jax Top Lane Guide

Top [11.15] RTO's Challenger Jax Top Lane Guide

Updated on July 25, 2021
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League of Legends Build Guide Author RTO Build Guide By RTO 131 8 388,436 Views 1 Comments
131 8 388,436 Views 1 Comments League of Legends Build Guide Author RTO Jax Build Guide By RTO Updated on July 25, 2021
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Runes: General

1 2
Legend: Tenacity
Coup de Grace

Biscuit Delivery
Time Warp Tonic

+10% Attack Speed
+9 Adaptive (5.4 AD or 9 AP)
+6 Armor


1 2
LoL Summoner Spell: Flash


LoL Summoner Spell: Teleport


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More Jax Runes

Threats & Synergies

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RTO Here!
About Me

I am a Peak 578 LP Challenger, North American Top Laner and Streamer representing Team Radiance, whose mission is to promote positivity in League of Legends. My main is Renekton, but I play many other champions when I am target banned. I also have an incredible amount of top lane knowledge that I want to share with you guys.

I find Jax to be a very adaptive, versatile champion, who scales well into late game and is an extremely beginner friendly champion, due to lack of complex mechanics.

If you like this guide, make sure to check out my even more in depth guides at my new website

Social Media

Summoner Spells

Flash is your engage summoner, your escape summoner, and all in between summoner. Take this every time. There is no reason to replace this summoner.

Ignite is when you feel like you want to be hyper aggressive during laning phase. It's damage got nerfed during 9.2, so generally Teleport is taken instead. Great vs healers such as Vladimir and Dr. Mundo.

Teleport is your primary summoner in place of Ignite, it allows top laners to have great map pressure, it's used for split pushing, turning team fights and returning quickly to lane early game.



The best choice of rune for Jax currently is Conqueror. You gain up to 5 adaptive force (based on level) for 8 seconds, stacking to a max of 12. You also gain 9% healing from all sources, which is great for prolonged trades, skirmishes and late game teamfights.

Triumph can help grant you a clutch kill, or a quick escape from an enemy thinking he's secured the kill on you in a 2v1. It works in teamfights very well, contributing to the latter, and potentially allowing you to turn a teamfight.

If the enemy team has a lot of CC - hard or soft - tenacity is the best choice for Jax, especially if you decide to fight a lot with your team, it can also help you escape while split pushing if the enemies collapse on you.
Legend: Alacrity is a good choice if you're going to try focus on carrying, and want the extra attack speed for extra damage output.

With Coup de Grace, you deal 8% more damage to champions under 40% hp. Helps you to secure a kill, especially vs an enemy that doesn't expect the extra damage, and it's very easy for Jax to drop an enemy to that threshold, especially when fed or snowballing.
Last Stand is a good pickup if you want to be that kind of tanky carry frontline, where you'll be in the middle of fights constantly, taking the brunt of the damage, along with AoE damage.
Helps your sustain in laning phase, restoring 10% of your missing HP and mana, and permanently increases your mana cap by 50 every time you consume, or sell, a biscuit. Good synergy with Time Warp Tonic.

Very useful for laning phase if taken alongside Biscuit Delivery. You gain 50% of a biscuit, or health potions, health renewal instantly, and you also gain 5% bonus movement speed while under the effect of said items. Can be useful for sticking to an enemy for a clutch kill, or catching them off guard with an instant heal.
Magical Footwear is an option as you'll be able to buy your core items quicker than having to spend gold on boots. You receive them at 12 minutes, with every takedown reducing the cooldown by 45s - can be unforgiving if you have a bad time in laning phase.


In the current meta, tower plates are one of the first objectives you want to be focused on, and Demolish helps you achieve this. If you don't need the sustain from Inspiration, and you intend to split push a lot, or want to end a game fast, Demolish is a good choice to take.

Another rune to help keep yourself alive longer, especially if being focused down by a single target, taking less damage from their next 3 abilities or attacks you receive from them. Good if you're going to be making quick trades with the opposing laner.

The quicker your attack speed, the higher your damage output. No brainer.

Your next two runes are interchangeable depending on the enemy match up you're against. You want more damage? Adaptive force! More AP? Take magic resist. More physical? Take armor. Want / need more hp? Take HP!

Itemization Choices

You'll want to make choices depending on the enemy team
and match up that you're against, whether you need more armor, or more magic resist



Relentless Assault

Jax gains 3.5% − 11% (based on level) bonus attack speed for 2.5 seconds every time he lands a basic attack, stacking up to 8 times for a maximum of 28% − 88% (based on level) bonus attack speed.

Stacks fall off one at a time every 0.25 seconds after not attacking for 2.5 seconds.

Relentless Assault will be triggered when attacking structures.
Jax keeps generating stacks of Relentless Assault, even if his attacks are getting dodged or if they miss.

Leap Strike

Jax dashes to the target unit or ward.
If his target is an enemy, he deals physical damage to them.
Physical Damage: 65 / 105 / 145 / 185 / 225 (+100% bonus AD)(+60% AP)

Leap Strike will damage the target regardless of whether or not they remained where they were at the time of Jax's casting, as well as regardless of whether or not Jax successfully dashed.
Spell Shield will block the damage (including when empowered) but will not prevent the dash.
Leap Strike can be used on any targetable allied or enemy unit (except structures) such as -
Demacian Standard, Noxious Trap, Dark Passage etc.


Jax's next basic attack or Leap Strike within 10 seconds deals bonus magic damage. If Empower is used on a basic attack, it will have 50 bonus range.
Magic Damage - 40 / 75 / 110 / 145 / 180 (+60% AP)

Empower resets Jax's autoattack timer.
Empower has no cast time and does not interrupt Jax's previous orders.
The enhanced attack can be dodged and will be consumed afterwards.
Empower will be consumed if the attack misses.

Counter Strike

Jax enters Evasion, a defensive stance, for up to 2 seconds, causing all basic attacks against him to miss. Jax also takes 25% reduced damage from all area of effect abilities. After 1 second, Jax can reactivate to end it immediately.
At the end of the duration, Jax stuns all nearby enemies for 1 second and deals physical damage to them, increased by 20% for each attack dodged, up to a 100% increase.
Minimum Physical Damage - 55 / 80 / 105 / 130 / 155 (+ 50% bonus AD)
Maximum Physical Damage - 110 / 160 / 210 / 260 / 310 (+ 100% bonus AD)

Jax enters Evasion, a defensive stance, for up to 2 seconds, causing all basic attacks against him to miss. Jax also takes 25% reduced damage from all area of effect abilities. After 1 second, Jax can reactivate to end it immediately.
At the end of the duration, Jax stuns all nearby enemies for 1 second and deals physical damage to them, increased by 20% for each attack dodged, up to a 100% increase.
Magic Damage Per Second - 11 / 19 / 27 / 35 / 43 (+ 12% AP)
Armor Reduction - 15 / 20 / 25 / 30 / 35% of target's armor

Jax will still dodge attacks and stun opponents when the duration ends even while being disabled by crowd control effects.
Jax cannot dodge turret attacks.

Grandmaster's Might

PASSIVE: Jax deals bonus magic damage on every third basic attack within 2.5 seconds of each other.

ACTIVE - THE CHAMP: Jax gains bonus armor and bonus magic resistance for 8 seconds.
Bonus Magic Damage - 100 / 140 / 180 (+70% AP)
Bonus Armor - 30 / 50 / 70 (+50% bonus AD)
Bonus Magic Resist - 30 / 50 / 70 (+ 20% AP)

Grandmaster's Might has no cast time and does not interrupt Jax's previous orders.
As of 10.1, Grandmaster's Might now works with Guinsoo's Rageblade.
If the enhanced attack is dodged and/or blocked the bonus damage will not apply.
Despite being an on-hit effect, Grandmaster's Might's damage will trigger spell effects as a single-target spell.


Take Counter Strike level one, you can level 1 cheese with this!

Jax is very adaptable to multiple play styles, but he is quite an aggressive laner. Level one, he can cheese easily with Counter Strike, auto'ing your enemy opponent, activating your Counter Strike and sticking to them for a large chunk of damage, hopefully forcing them to use a health potion. If you chose to take Biscuit Delivery, you should have an easier time sustaining in lane, forcing less recall s, enabling you to push harder, and Time Warp Tonic could secure you clutch kills.

Tanks, such as Malphite or Dr. Mundo, can be slightly problematic for Jax. You generally just want to farm up, trade if they make mistakes, wait for ganks. It's when they start building items, and reaching the general tank threshold, you will struggle to kill them. At this point, you'll most likely want to just try to heavily push them, as when team fights inevitably break out, you will be forcing them to answer to your push, leaving their team without their front line, or Teleport and leave you to chunk down towers.

Make sure to keep your Stealth Ward, as just like Lee Sin, you can use it to your advantage and make clutch escapes with Leap Strike.

At level 6, you will be able to win a lot of trades with Leap Strike, AA and Empower. This short combo offers a large amount of burst damage, hopefully forcing your opponent to back off, leaving you free to push. Keep in mind that you can cancel your AA animation with Counter Strike, enabling faster combos and chunking down enemies easier.

Once you're 6+, you can focus on pushing the wave into the enemy tower and trying to take some early plates with Demolish - if you chose to take this rune.
Help out your jungler if he comes to take Rift Herald , and secure first blood tower for your team. At this point you can potentially invade the enemies jungle, taking away vital XP, gold and their blue buff, if you're on red side.


Outside of laning phase, you have the option to group with your team and take objectives, or split push. If your team has a strong team fight, you can group with them, invading the enemy jungle, forcing fights over objectives, or pushing lanes.

Jax excels at split pushing for multiple reasons, including

Demolishing turrets with insane attack speed and Sheen
He can dual nearly anyone at late game, forcing enemies to collapse to stop your push
He can Leap Strike to safety and ward hop easily.

The ideal times to split push are as follows -

If Baron Nashor is alive and your Teleport is available, you can split push bot lane.
If Baron Nashor is alive and your Teleport is down, you will be split pushing top lane.

If Baron Nashor is dead, and your Teleport is down, you will split push bot lane, especially if a dragon will be spawning.
If Baron Nashor is dead, and your Teleport is available, you can split push top lane.

You want to split push the lane opposite to the most important, neutral objective, if your Teleport is available. This way, you can take the majority of pressure off the objective, as the enemies will not be able to answer you solo, and they give up the objective to your team. If you know the enemies will be collapsing on you soon, you will want to spam ping your team to complete the objective as quickly as possible. If the enemies collapse on your team, you can Teleport to them to quickly reach the fight, or chunk down the enemies defenses.
Make sure you have good vision around you, so you can see enemies coming from fog of war, which you can either back off, or choose to take the fight, potentially securing a 1v2 or leaping to safety and wasting their time.

If you're in the middle of a fight, you want to pop Grandmaster's Might first thing, and leap towards the enemy ADC. You can use Counter Strike to negate any of their burst, and potentially stunning the entire team, empowering your attacks and being a hefty source of damage, while gaining armor and MR from your ultimate. Be careful if the enemy team have a Lulu, she will Whimsy you, completely negating any of your damage and essentially rendering you useless - Counter Strike will still stun people if you're polymorphed, try to position to counter some effect of her polymorph. The same goes for any very hard CC such as Morgana's Dark Binding, Malzahar's Nether Grasp, or an Ezreal that has built Frostfire Gauntlet to kite you - this is less effective due to your ability to Leap Strike and stun.
I hope you have enjoyed and learnt enough from my Jax guide, to (em)power down your enemies, and conquer the game.

If you're interested in seeing more of Jax, Renekton and myself, please follow my stream! I am streaming every day, and I engage with my chat consistently.

If you like this guide, make sure to check out my even more in depth guides at my new website

Please contact Mossey#6340 on Discord for guide creations
Update Log
  • 06/26/2019 - Published Guide.
  • 06/27/2019 - Completed gameplay section.
  • 08/14/2019 - Reflected 9.16 changes.
  • 11/21/2019 - Updated for 9.23.
  • 01/09/2020 - Updated for 10.1
  • 11/23/2020 - Updated for preseason.
League of Legends Build Guide Author RTO
RTO Jax Guide
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[11.15] RTO's Challenger Jax Top Lane Guide

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