Jax

Grandmaster at Arms · Skirmisher

View builds

Summoner's Rift ARAM Arena Nexus Blitz URF One for All Swiftplay Ultimate Spellbook

Changes in One for All

-5% damage dealt · +5% damage taken

Abilities

PassiveRelentless Assault

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

QLeap Strike8/7.5/7/6.5/6s50

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

WEmpower7/6/5/4/3s30

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

ECounter Strike17/15/13/11/9s50/60/70/80/90

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

RGrandmaster-at-Arms110/100/90s100

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.

Patch history

26.12 · Jun 10, 2026

Leap Strike
Mana cost reduced to 50 from 65.
Counter Strike
Minimum health ratio increased to 4% of target's maximum health from 3.5%.
Maximum health ratio increased to 8% of target's maximum health from 7%.

26.1 · Jan 8, 2026

Relentless Assault
New Effect: Now gains an additional 1.5% attack speed per stack at level 19.

25.22 · Nov 5, 2025

Counter Strike
New Effect: Damage based on the target's health ratio is now capped at 9000 against monsters.

25.19 · Sep 24, 2025

Stats
Base health reduced to 650 from 665.
Empower
Bug Fix: Restored cast VO.
Grandmaster-at-Arms
Primary bonus armor increased to 45 to 75 from 25 to 75.
Primary bonus magic resistance increased to 27 to 45 from 15 to 45.

25.12 · Jun 11, 2025

Relentless Assault
Bonus attack speed per stack increased to 5% to 12.5% from 3.5% to 11%.
Maximum bonus attack speed increased to 40% to 100% from 28% to 88%.

35 older patches

25.11 · May 29, 2025

Grandmaster-at-Arms
Undocumented / New Effect: Empowered basic attack now has an uncancellable windup.

25.8

Empower
Bug Fix: No longer sometimes fails to apply its damage against structures.

25.7

Grandmaster-at-Arms
Bug Fix: After spending a second or further skill point in the ability, no longer causes the attack animations associated with the ability to stop playing.

14.22

Grandmaster-at-Arms

Base stats

Health650 +103/lvl
Mana339 +52/lvl
Attack Damage68 +4.25/lvl
Attack Speed0.638 +3.4/lvl
Armor36 +4.2/lvl
Magic Resist32 +2.05/lvl
Base Health Regen8.5 +0.55/lvl
Base Mana Regen8.2 +0.7/lvl
Move Speed350
Range125

Melee · Resource: Mana

Cooldown increased to 110 to 90 seconds from 100 to 80.

Base damage reduced to 100 to 250 from 150 to 350.

14.18

Grandmaster-at-Arms
On-hit base damage increased to 70 to 170 from 60 to 160.
Bonus armor increased to 25 to 75 from 15 to 65.
Bonus magic resistance increased to 15 to 45 from 9 to 39.
Bonus armor per subsequent target increased to 20 to 30 from 15 to 25.
Bonus magic resistance per subsequent target increased to 12 to 18 from 9 to 15.

14.14

Empower
Bug Fix: Empowered attack no longer sometimes fails to apply against towers.
Counter Strike
Cooldown increased to 17 to 9 seconds from 15 to 9.
Grandmaster-at-Arms
Bug Fix: Restored empowered attack SFX when attacking structures.

14.10

Grandmaster-at-Arms
Bug Fix: Cast indicator now matches with the correct range of 375.
Bug Fix: Ability power and attack damage from conversions and adaptive force is now properly included in the ratio calculations.

14.9

General
Adjusted splash artwork for SKT T1 Jax.

14.7

Relentless Assault
Bug Fix: Restored all respective buff icons.

14.5

Neo PAX Jax
Bug Fix: Idle fish VFX now appear as intended while he is in the river.

14.2

Empower
New Effect: Empowered attack is now consumed against structures for 50% damage.
Counter Strike
Minimum base damage reduced to 40 to 160 from 55 to 175.
Maximum base damage reduced to 80 to 320 from 110 to 350.
Minimum health ratio reduced to 3.5% of target's maximum health from 4%.
Maximum health ratio reduced to 7% of target's maximum health from 8%.
Grandmaster-at-Arms
New Effect: Passive stacks can now be consumed against structures to deal 50% damage.

13.23

General
Adjusted splash artwork and model for The Mighty Jax.

13.22

Empower
Bug Fix: Now uses the correct animation for the attack rather than the default one when he has any passive stacks.
Empyrean Jax
Bug Fix: Flame VFX is no longer misplaced during his Recall animation.

13.21

General
Bug Fix: Several VFX and SFX issues resulting from the ASU have been resolved.
Counter Strike
Undocumented: Now deals the proper amplified amount of damage again if Jax recasts it manually.

13.20

Counter Strike
Bug Fix: Cooldown increased to 15 to 9 seconds from 14 to 8.
Grandmaster-at-Arms
Bug Fix: Mana cost increased to 100 from 50.
General
Updated ability icons.
Complete visual update across all skins.
New splash artwork for Original Jax, The Mighty Jax, Vandal Jax, Angler Jax, PAX Jax, Jaximus Jax, Temple Jax, and Nemesis Jax.
New voice-over.
Updated sound effects.
Relentless Assault
New Effect: Catching a fish now grants 1 AP for 5 seconds.
New Effect: Now has a 5% chance to catch a rare fish that grants 10 and 10 ability power for 5 seconds.
Empower
Undocumented: Empowered basic attacks now have an uncancellable windup.
Counter Strike
Undocumented / Bug: Cooldown reduced to 14 to 8 seconds from 15 to 9.
Undocumented / Bug: Now always deals the minimum damage if Jax manually recasts it.
Mecha Kingdoms Jax
Counter Strike
Bug Fix: VFX ring no longer remains for longer than intended after dodging multiple hits.
Grandmaster-at-Arms
Undocumented / Bug: Mana cost reduced to 50 from 100.

13.19

Counter Strike
Bug Fix: VFX is no longer visible to enemies from the Fog of War.
Grandmaster-at-Arms
Bug Fix: VFX is no longer visible to enemies from the Fog of War.
Warden Jax
Bug Fix: Cape and shoulder armor no longer improperly clip with his model during certain animations.

13.17

Mecha Kingdoms Jax
Counter Strike
Bug Fix: VFX no longer displays for longer than intended after dodging multiple hits in a single cast.

13.16

General
Bug Fix: Several issues with voice line playback have been resolved.

13.15

Mecha Kingdoms Jax
Counter Strike
Bug Fix: VFX indicator no longer remains after the fact even if multiple hits were dodged during the ability.

13.14

Counter Strike
Cooldown increased to 15 to 9 seconds from 14 to 8.
Grandmaster-at-Arms
Mana cost increased to 100 from 50.

13.4

Stats
Base health reduced to 665 from 685.
Health growth increased to 100 from 99.
Counter Strike
AP ratio reduced to 70% AP from 100% AP.
New Effect: Now increases total damage per attack dodged instead of only base damage.
Grandmaster-at-Arms
On-hit base damage reduced to 60 to 160 from 80 to 160.
Base bonus armor reduced to 15 to 65 from 25 to 65.
Base bonus magic resistance reduced to 9 to 39 from 15 to 39.

13.3

Grandmaster-at-Arms
Shield visual effect restored.
Improved hit sound effect.
Bug Fix: Now properly plays all sound effects.
Nemesis Jax
Lightning visual effects added to Grandmaster-at-Arms.
God Staff Jax
Sparkle and spike visual effects added to Grandmaster-at-Arms.
Adjusted cape animation to reduced stiffness.
Updated Grandmaster-at-Arms passive empowered attack animation.
Bug Fix: No longer returns to his idle animation between attacks.
Mecha Kingdoms Jax
Ember explosion visual effects added to Grandmaster-at-Arms.
Adjusted visual effects for Empower and Grandmaster-at-Arms on-hit.
Bug Fix: Now properly plays Grandmaster-at-Arms reactive shield visual effect.
Bug Fix: Now properly plays Grandmaster-at-Arms rank up animation.
Bug Fix: Now properly plays Counter Strike unique basic attack animations.
Bug Fix: Grandmaster-at-Arms stacks now properly play at their intended speed.
Conqueror Jax
Spike visual effects added to Grandmaster-at-Arms.
Prestige Conqueror Jax
Spike visual effects added to Grandmaster-at-Arms.

13.1

General
Updated ability icons.
Secret fishing passive added.
Leap Strike
Removed: Damage no longer scales with 60% AP.
Counter Strike
Damage type changed to magic from physical.
Base damage increased to 55 to 175 from 55 to 155.
Removed: Damage no longer scales with 50% bonus AD.
New Effect: Damage now scales with 100% AP.
New Effect: Damage now scales with 4% of the target's maximum health.
New Effect: Now only increases base damage per attack dodged instead of total damage.
Grandmaster-at-Arms
Ability renamed to Grandmaster-at-Arms from Grandmaster's Might.
Cooldown increased to 100 to 80 seconds from 80 at all ranks.
On-hit base damage reduced to 80 to 160 from 100 to 180.
On-hit AP ratio reduced to 60% AP from 70% AP.
New Active: Swings his lantern around, dealing 150 to 350 (+ 100% AP) magic damage to enemies within 375 units. If this hits a champion, he gains 25 to 65 (+ 40% bonus AD) bonus armor, increased by 15 to 25 (+ 10% bonus AD) per subsequent champion hit, and bonus magic resistance equal to 60% of armor gained for 8 seconds. He applies his passive on-hit every 2 stacks instead of every 3 while active.
Old Active: Gains 30 to 70 (+ 50% bonus AD) bonus armor and 30 to 70 (+ 20% AP) bonus magic resistance as well as 10% increased size for 8 seconds.
Updated animations, visual effects, and sound effects.
Undocumented: Mana cost reduced to 50 from 100.

12.22

Stats
Base mana regeneration increased to 7.6 from 7.58.

12.10

Stats
Base health increased to 685 from 615.
Health growth increased to 99 from 85.
Armor growth increased to 4.2 from 3.
Magic resistance growth increased to 2.05 from 1.25.

12.6

Stats
Base health increased to 615 from 593.
Empower
Base damage increased to 50 to 190 from 40 to 180.

11.5

Stats
Attack damage growth increased to 4.25 from 3.38.

11.1

Stats
Base magic resistance reduced to 32 from 32.1.
Base health increased to 593 from 592.8.
Attack damage growth increased to 3.38 from 3.375.

10.23

Stats
Mana growth increased to 52 from 32.

10.16

Counter Strike
Cooldown reduced to 14 to 8 seconds from 16 to 8.

10.13

Leap Strike
Bug Fix: Damaging with Leap Strike followed by two basic attacks will now properly activate Phase Rush and Electrocute.

10.8

Empower
Indicator added to show recast ability timer.
Counter Strike
Indicator added to show recast ability timer.

10.1

Grandmaster's Might
Bug Fix: The bonus damage now triggers on-hit instead of on-attack.

9.16

Leap Strike
Cooldown reduced to 8 to 6 seconds from 10 to 6.

9.9

General
New visual effects.
Basic attack cleaned up and added some oomph.
Leap Strike
Cleaned up for readability.
Empower
Activation made more visible and fire added to his lamppost.
Counter Strike
Cleaned up and added an indicator for the stun range.
Grandmaster's Might
Cleaned up, added sand particles, and made the third hit more clear and satisfying.
Nemesis Jax
New particles over the entire kit.
God Staff Jax
Counter Strike
Added stun range indicator to match changes to base.