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By GamGem ResearchLast updated 18 Oct 2026

Jax Build, Counters and Runes — Top Lane · Patch 26.20

Grandmaster at Arms

Patch 26.20 · Stats from the 26.18 Master+ sample (4,554 games).

Jax, Grandmaster at Arms, dodges every basic attack during Counter Strike and then stuns everyone around him, and Leap Strike can jump him to any unit, ally or enemy. Lethal Tempo edged Grasp of the Undying among counted Master+ Jaxes, whose one printed path is Trinity Force, Sundered Sky, Zhonya's Hourglass.

Fighter

Patch 26.18 · Top · Ranked Solo/Duo · Master+ · EUW · KR · NA · 4,554 games · Preview sample

Role snapshot (Top)

STier
Win Rate
51.7%
Pick Rate
7.0%
Ban Rate
16.1%

4,554

Games

Very High

Confidence

Most common path

243 games

59.7%Win Rate

Start
FlashTeleport

Runes

Patch 26.18

This exact page: taken in 8.6% of games·52.7% win rate over 391 games.

Primary

Resolve

Grasp of the Undying

Every 4s your next attack on a champion deals bonus magic damage, heals you, and permanently increases your health.

Demolish

Your third attack against turrets deals bonus damage.

Second Wind

After taking damage from an enemy champion heal back some missing health over time.

Unflinching

Gain Armor and Magic Resist when receiving crowd control.

Secondary

Inspiration

Biscuit Delivery

Gain a free Biscuit every 2 min, until 6 min. Consuming or selling a Biscuit permanently increases your max health and restores health.

Cosmic Insight

+18 Summoner Spell Haste+10 Item Haste

Shards

  • Attack Speed
  • Adaptive Force
  • Health

Other keystones taken

  • Grasp of the Undying39.2% taken · 53.7% win1,786 games
  • Stormraider's Surge5.8% taken · 50.9% win265 games
  • Conqueror5.1% taken · 49.1% win230 games

Tree pairs

  • Resolve + Inspiration35.9% taken · 54.0% win1,634 games
  • Precision + Inspiration22.5% taken · 50.0% win1,025 games
  • Precision + Resolve19.7% taken · 50.2% win898 games

Skill Order

Which ability to max first, and the level each point goes in — Jax's most common path.

Q

Leap Strike

Jax leaps toward a unit.

Cooldown 8/7.5/7/6.5/6s · 50 Mana
W

Empower

Jax charges his weapon with energy, causing his next attack to deal additional damage.

Cooldown 7/6/5/4/3s · 30 Mana
E

Counter Strike

Jax's combat prowess allows him to dodge all incoming attacks for a short duration and then quickly counterattack, stunning all surrounding enemies.

Cooldown 17/15/13/11/9s · 50/60/70/80/90 Mana
R

Grandmaster-at-Arms

Every third consecutive attack deals additional Magic Damage.

Cooldown 110/100/90s · 100 Mana

Max Order

WEQ

Max W first, then E, then Q. Take R whenever available (6 / 11 / 16).

Level-up Order

  • Q
  • W
  • E
  • R
Ability123456789101112131415161718
QLeap StrikeQQQQQ
WEmpowerWWWWW
ECounter StrikeEEEEE
RGrandmaster-at-ArmsRRR

Matchup map (Top)

How Jax performs against enemy top laners

Levels 1 – 18 · Master+40%60%Jax's win rate
≥ 60%Very favorable
55 – 60%Favorable
50 – 55%Even
45 – 50%Unfavorable
40 – 45%Hard
< 40%Very hard

Conditional build matrix

Recommended items by enemy team composition

Master+ · Patch 26.18
Mythic / CoreFirst major item
Core 2Second item
Core 3Third item
BootsBoot slot
SituationalPick as needed

Scaling — minute 10–30

JaxTop average

Gold

102030

Damage to champions

102030

CS

102030

Counter plan — how to beat Jax

  • Avoid extended fights — its sustain grows with every trade it survives

  • Punish the cooldown — Jax is exposed while its rotation is down

  • Ward the flank — vision is what turns its best opening into a worse one

  • Respect the spike — Riot rates the kit 5/10, so a practised player gets more out of it than the average

  • Trade on your terms — take the fight where its damage lands on nobody

Ability details

  • P

    Relentless Assault

    Jax's consecutive basic attacks continuously increase his Attack Speed.

    Passive — never cast

  • Q

    Leap Strike

    Jax leaps toward a unit. If they are an enemy, he strikes them with his weapon.

    Cost 50 ManaCooldown 8/7.5/7/6.5/6sRange 700

  • W

    Empower

    Jax charges his weapon with energy, causing his next attack to deal additional damage.

    Cost 30 ManaCooldown 7/6/5/4/3sRange 300

  • E

    Counter Strike

    Jax's combat prowess allows him to dodge all incoming attacks for a short duration and then quickly counterattack, stunning all surrounding enemies.

    Cost 50/60/70/80/90 ManaCooldown 17/15/13/11/9sRange 300

  • R

    Grandmaster-at-Arms

    Every third consecutive attack deals additional Magic Damage. Additionally, Jax can activate this ability to deal damage around himself and strengthen his resolve, increasing his Armor and Magic Resist for a short duration.

    Cost 100 ManaCooldown 110/100/90sRange 260

Jax balance history

Riot's notes from patch 25.S1.1 to 26.20 change Jax in 4 patches. The latest is patch 26.12, published 2026-06-09.

  1. Patch 26.122026-06-09

    QLeap Strike

    • Mana Cost65to50

    ECounter Strike

    • Target Max Health Damage3.5% minimum damage / 7% maximum damageto4% minimum damage / 8% maximum damage
    Why, in Riot's words

    Our favorite Grandmaster at Angling has been patiently waiting for his time to strike. Jax is meant to be a high-damage threat who ramps up in fights, but currently he's been a (fish)bait pick against durable opponents. These changes should help with that, without pushing him over the (fishing) line.

  2. Patch 26.12026-01-07

    PRelentless Assault

    • Now gains an additional 1.5% attack speed per stack at level 19.
    Why, in Riot's words

    Now that the top lane quest can raise champion levels to 20, we're looking for any champions who intermittently scale their passives and giving them another breakpoint if they deserve one. Jax is one such champion who's gaining a bit more attack speed at level 19.

  3. Patch 25.192025-09-23

    Base States

    • Base HP665to650

    RGrandmaster-At-Arms

    • Initial armor gain25 / 50 / 75 (+ 40% bonus AD)to45 / 60 / 75 (+ 40% bonus AD)
    • Magic resist gain is still 60% of armor gain
    • Resistance gain per additional champion hit unchanged
    Why, in Riot's words

    We’d like to see Jax as a more meta-defining top laner at Worlds this year but acknowledge he’s already strong enough for regular players, so we’re making his strengths more windowed, something that highly skilled players and coordinated teams can readily harness.

  4. Patch 25.122025-06-10

    PRelentless Assault

    • Bonus Attack Speed per Stack3.5 / 5 / 6.5 / 8 / 9.5 / 11% (based on level)to5 / 6.5 / 8 / 9.5 / 11 / 12.5% (based on level)
    Why, in Riot's words

    Jax’s long-held niche is a scaling and relentless side lane skirmisher, so we want to lean into that a bit more by giving him some more bonus attack speed from his passive. This should help him split better and effectively win longer duels in the side lane.

Jax skins (18)

Riot's data lists 18 looks for Jax with their own art, the base skin included and 27 chroma variants.

ARAM performance

EstimateB
Win Rate
49.3%
▲ 0.5%
Pick Rate
5.6%
▲ 2.1%
Ban Rate
1.0%
▲ 0.2%
Damage dealt
107.4%
Damage taken
100.7%
Healing
102.8%
Shielding
95.1%
Ability Haste
+2

Best ARAM build

Patch timeline

This champion’s win rate on each patch the preview sample spans, over its own games there. What actually changed each patch is in Riot’s own notes.

  1. 26.1951.4% over 1,260 games-0.1
  2. 26.1851.6% over 2,363 games-0.3
  3. 26.1752.4% over 916 games · small sample—

Jax's base stats against all 173 champions

StatJaxRankMedian
Base health650=26th620
Health per level103=102nd104
Base armor36=20th30
Armor per level4.2=122nd4.6
Base magic resist32=32nd32
Magic resist per level2.05=4th1.55
Base attack damage68=5th59
Base attack speed0.638=108th0.656
Attack speed per level3.4%=25th2.5%
Move speed350=2nd335
Attack range125=129th175

Jax at level 1 and level 18

  • Jax reaches 2401 health at level 18 — 650 at level 1 plus 17 × 103, the 84th-highest of 173 champions on patch 26.20.
  • Jax reaches 1223 mana at level 18 — 339 at level 1 plus 17 × 52, the 34th-highest of 145 mana users on patch 26.20.
  • Jax reaches 107.4 armor at level 18 — 36 at level 1 plus 17 × 4.2, the 83rd-highest of 173 champions on patch 26.20, shared with 2.
  • Jax reaches 66.85 magic resist at level 18 — 32 at level 1 plus 17 × 2.05, the 5th-highest of 173 champions on patch 26.20, shared with 69.
StatLevel 1Per levelLevel 18Rank at 18
Health650+103240184th of 173
Mana339+52122334th of 145
Armor36+4.2107.4=83rd of 173
Magic resist32+2.0566.85=5th of 173

Riot Data Dragon 16.20.1. Growth curve: League of Legends Wiki — Champion statistic.

Riot's tips for Jax

Playing Jax

  • Jax can Leap Strike to friendly units, including wards. You can use them to plan your escape.
  • Jax benefits greatly from items that have both Ability Power and Attack Damage such as Guinsoo's Rageblade and Hextech Gunblade.

Playing against Jax

  • Try to engage him in short bursts instead of going toe-to-toe with him. Preventing him from attacking consecutively drastically lowers his damage output.
  • Jax can dodge all incoming attacks for a very short amount of time and stuns enemies in melee range when it ends. Wait to strike him until after his dodge is finished.

Quick answers about Jax

What class is Jax?
Riot classes Jax as Fighter. This site files the champion under Top.
How hard is Jax to play?
Riot rates Jax's difficulty 5 out of 10.
What resource does Jax use?
Jax's abilities spend Mana.
What is Jax's attack range?
125 units — the lowest of 173 champions on patch 26.20 (shared with 44 others).
What are Jax's abilities?
Passive — Relentless Assault, Q — Leap Strike, W — Empower, E — Counter Strike and R — Grandmaster-at-Arms.
How many skins does Jax have?
Riot's data lists 18 skins with their own art, the base look included, plus 27 chroma variants.
How much health does Jax have at level 18?
2401 — 650 at level 1 plus 17 × 103 per level, Riot's own values, before items and runes.
What is Jax's ultimate cooldown?
Grandmaster-at-Arms (R): 110/100/90 seconds by rank, before ability haste, in Riot's Data Dragon 16.20.1.
When did Riot last change Jax?
Patch 26.12, published 9 June 2026 — the latest of 4 patches that change Jax in Riot's notes from 25.S1.1 to 26.20.

Jax at a glance

Jax, Grandmaster at Arms, is a Fighter champion in League of Legends. Riot rates the kit 5/10 for difficulty, 7/10 for attack, 5/10 for defense and 7/10 for magic. Jax spends Mana and has 18 skins with their own art.

Attack7/10
Defense5/10
Magic7/10
Difficulty5/10

Jax's story

Unmatched in both his skill with unique armaments and his biting sarcasm, Jax is the last known weapons master of Icathia. After his homeland was laid low by its own hubris in unleashing the Void, Jax and his kind vowed to protect what little remained. As magic now rises in the world, this slumbering threat stirs once more, and Jax roams Valoran, wielding the last light of Icathia and testing all warriors he meets to see if any are strong enough to stand beside him...
— Riot Games, Data Dragon 16.20.1. League of Legends Universe

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Methodology

Data window
Preview sample — a one-time snapshot of 65,406 ranked games (Master+, EUW/KR/NA, patch 26.18), counted by GamGem while our Riot production key is under review. Figures will update daily once it is approved. Counted 26–27 Sept 2026; patches 26.18 (35,477) · 26.19 (18,580) · 26.17 (11,048) · 26.16 (293) · 26.15 (8); by server EUW 22,382 · KR 21,922 · NA 21,065 · EUNE 20 · TR 17. 642 games without a result — remakes ended by vote in their first minutes, and games recorded with no winner — were not counted.
Rank aggregation
Master, Grandmaster and Challenger, pooled — the three ladders the count read its players from. Splitting further leaves samples too small to separate a real effect from noise.
Role assignment
A champion is filed under every lane that holds at least a tenth of its counted games — the position the match itself reports, not the champion’s class. Its headline win rate is across all of them; each lane’s own win rate and games are counted too, and a lane’s tier list ranks by them.
Counters
The two champions in the same position on opposite teams, over that pairing’s own counted games — ranked on the edge pulled toward zero by its sample size, printed raw.
Minimum sample
None — no figure is hidden for being thin. Every rate prints its games, and the confidence band is its 95% margin: Very High within ±1.5 points, High ±2.5, Moderate ±3.1 (1,000 games), Low wider.
Why a build is not a cause
An item is counted when the match ENDS with it, so late items show long games and an item bought when already ahead shows games that were being won. Correlation is what a rate can show; it is not evidence that buying the item caused the win.
Where the numbers come from
Names, classes, abilities, items and runes are Riot Data Dragon. Win, pick and ban rates, builds, keystones, spells and matchups are counted by GamGem from Riot's ranked match records. An estimate, not a count: this panel is not in the preview sample, and is labelled so.

Jax on video