Kai'Sa

Daughter of the Void · Marksman

View builds

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

Changes in ARAM

-10% damage taken

Q

Bonus AD ratio changed to 65% bonus AD.

Abilities

PassiveSecond Skin

Kai'Sa's basic attacks stack Plasma, dealing increasing bonus magic damage. Allies' immobilizing effects help stack Plasma. Additionally, Kai'Sa's item purchases upgrade her basic spells to have more powerful properties.

QIcathian Rain10/9/8/7/6s55

Kai'Sa shoots a swarm of missiles that seek out nearby targets. Living Weapon: Icathian Rain is upgraded to shoot more missiles.

WVoid Seeker20/18.5/17/15.5/14s55/60/65/70/75

Kai'Sa shoots a long range missile, marking enemies with her passive. Living Weapon: Void Seeker is upgraded to apply more passive marks and reduce cooldown on champion hit.

ESupercharge

16/14.5/13/11.5/10s

30

Kai'Sa briefly increases her Move Speed, then increases her Attack Speed. Living Weapon: Supercharge is upgraded to briefly grant Invisibility.

RKiller Instinct130/100/70s100

Kai'Sa dashes near an enemy champion.

Patch history

26.16 · Aug 12, 2026

Stats
Base magic resistance increased to 33 from 30.
Magic resistance growth reduced to 1.1 from 1.3.

26.15 · Jul 29, 2026

Second Skin
Caustic Wounds base damage increased to 4 to 30 from 4 to 24.
Caustic Wounds base damage per Plasma stack before application increased to 1 to 8 from 1 to 6.

26.13 · Jun 24, 2026

Void Seeker
Cooldown reduced to 20 to 14 seconds from 22 to 14.
Killer Instinct
Base shield increased to 100 to 200 from 70 to 110.

26.9 · Apr 29, 2026

Killer Instinct
Bug Fix: Now properly counts as an attack reset for Hail of Blades.

25.23 · Nov 19, 2025

Stats
Base armor reduced to 25 from 27.
Killer Instinct
Cooldown increased to 130 to 70 seconds from 120 to 60.

35 older patches

25.22 · Nov 5, 2025

Second Skin
Bug Fix: Evolution for any ability no longer triggers both perspectives' SFX (self and others) for the player.
Improved evolution SFX' fade out transition from others' perspective.
Icathian Rain
Bug Fix: Hit SFX triggers from the correct sources of impact when hitting multiple targets.
Improved hit SFX volume levels when hitting single vs multiple targets.
Original Kai'Sa, Bullet Angel Kai'Sa, Arcade Kai'Sa, KDA ALL OUT Kai'Sa, Lagoon Dragon Kai'Sa,

Base stats

Health640 +102/lvl
Mana345 +40/lvl
Attack Damage59 +2.6/lvl
Attack Speed0.644 +1.8/lvl
Armor25 +4.2/lvl
Magic Resist33 +1.1/lvl
Base Health Regen4 +0.55/lvl
Base Mana Regen8.2 +0.7/lvl
Move Speed335
Range525

Ranged · Resource: Mana

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Immortalized Legend Kai'Sa

Improved SFX audio clarity.

Rebalanced SFX volumes.

Risen Legend Kai'Sa and Immortalized Legend Kai'Sa

General

Bug Fix: Corrected kill counter SFX intensity during her Taunt expression.

Second Skin

Bug Fix: Now correctly plays a stereophonic version of the SFX for the player during the evolution transition.

25.21 · Oct 22, 2025

Second Skin
Undocumented / Bug Fix: Recall cast time no longer illegally cancels the evolution animation, instantly granting the effect.

25.19 · Sep 24, 2025

General
Bug Fix: If the player has shadows enabled, her shadow no longer lingers at her death position until she respawns.

25.14 · Jul 16, 2025

Risen Legend Kai'Sa, Immortalized Legend Kai'Sa
English voice-over added.

25.6

Stats
Base armor increased to 27 from 25.
Base health regeneration increased to 4 from 3.5.
Killer Instinct
Cooldown reduced to 120 to 60 seconds from 130 to 70.

14.23

General
Bug Fix: Honeyfruit consumption & kill count VO now properly play.

14.21

Second Skin
Plasma base damage changed to 4 to 24 from 5 to 23.
Plasma base damage per stack reduced to 1 to 6 from 1 to 12.
Maximum plasma base damage reduced to 8 to 48 from 9 to 71.
Plasma AP ratio reduced to 12% to 24% AP from 15% to 25% AP.

14.19

General
Bug Fix: VO lines are no longer sometimes out of sync with their respective events or fail to trigger.

14.8

Icathian Rain
Bonus AD ratio per missile increased to 55% bonus AD from 50%.

14.5

Killer Instinct
Bug Fix: Cast range indicator increased to match target range.

14.4

Killer Instinct
Target range increased to 2000 to 3000 units from 1500 to 3000.

14.3

Second Skin
Bug Fix: Mark's consumption SFX is no longer delayed if she has very high attack speed.

13.22

Second Skin
Bug Fix: No longer overlaps with Concussive Blows mark indicator.

13.20

Stats
Base armor reduced to 25 from 28.

13.15

Stats
Base health reduced to 640 from 670.
Icathian Rain
AP ratio per missile reduced to 20% AP from 30% AP.
Void Seeker
Cooldown refund reduced to 75% from 77%.

13.12

Stats
Attack damage growth increased to 2.6 from 2.

13.9

General
Bug Fix: Several voice lines now play correctly.
Bug Fix: Booster element on Bullet Angel Kai'Sa no longer clips through her booster while she is slowed.
Killer Instinct
Bug Fix: Location range indicator on Arcade Kai'Sa and Bullet Angel Kai'Sa no longer render under impassable terrain.

13.8

Killer Instinct
Bug Fix: Now properly respects the boundaries of Realm of Death.

13.6

General
Bug Fix: First spawn animation now properly displays her shield VFX.

13.4

Supercharge
Bug Fix: Casting the ability after using a basic attack that would consume all of a target's Second Skin stacks now properly does so.

12.19

Second Skin
Detonation AP ratio increased to 6% per 100 AP from 5% per 100 AP.

12.16

Second Skin
Plasma base damage increased to 5 to 23 from 4 to 16.
Plasma base damage per stack increased to 1 to 12 from 1 to 8.
Icathian Rain
AP ratio increased to 30% AP from 25% AP.
Killer Instinct
AP ratio increased to 120% AP from 90% AP.

12.10

Stats
Base health increased to 670 from 600.
Health growth increased to 102 from 88.
Armor growth increased to 4.2 from 3.
Magic resistance growth increased to 1.3 from 0.5.
Killer Instinct
Base shield reduced to 70 to 110 from 75 to 125.
AD ratio reduced to 90 to 180% AD from 100 to 200% AD.
AP ratio reduced to 90% AP from 100% AP.

12.8

Second Skin
Detonation AP ratio increased to 5% per 100 AP from 2.5% per 100 AP.
Void Seeker
AP ratio reduced to 45% AP from 70% AP.
Killer Instinct
AP ratio increased to 100% AP from 75% AP.

12.4

Second Skin
Bug Fix: Tooltips and evolution trackers now properly display and account for her current bonus stats.

11.24

Second Skin
Plasma base damage increased to 4 to 16 from 4 to 10.
Plasma base damage per stack increased to 1 to 8 from 1 to 5.
Plasma AP ratio increased to 15% to 25% AP from 10% to 20% AP.
Icathian Rain
Bonus AD ratio per missile increased to 50% bonus AD from 40%.
Maximum single target bonus AD ratio increased to 112.5% bonus AD from 90% bonus AD.
Maximum evolved single target bonus AD ratio increased to 187.5% bonus AD from 150% bonus AD.
Void Seeker
Cooldown refund increased to 77% from 70%.

11.23

Killer Instinct
Bug Fix: Can now properly be cast even if Icathian Rain hasn't been learned yet.

11.18

Supercharge
Cooldown reduced to 16 to 10 seconds from 16 to 12.

11.12

Icathian Rain
Cooldown increased to 10 to 6 seconds from 8 to 6.

11.9

General
Bug Fix: Now properly has voice lines for eating Honeyfruit and killing enemies with Void Seeker.
Second Skin
Bug Fix: Riftmaker and Trinity Force now grant her the appropriate amount of stats for her Evolutions.

11.7

Void Seeker
Bug Fix: Fixed a bug where Seeker's Armguard would affect Void Seeker's AP.
Killer Instinct
Cooldown increased to 130 to 70 seconds from 110 to 70.

11.4

Icathian Rain
Base damage per missile reduced 40 to 100 from 45 to 110.
Maximum single target base damage reduced to 90 to 225 from 101.25 to 247.5.
Maximum evolved single target base damage reduced to 150 to 375 from 168 to 412.5.

10.22

General
Bug Fix: Pinging her abilities when they're evolved will note it in chat.

10.17

Stats
Attack damage growth increased to 2 from 1.7.
Supercharge
Bonus attack speed increased to 40 to 80% from 40 to 60%.

10.13

Void Seeker
Bug Fix: Now properly applies stacks of Second Skin on Baron Nashor regardless of where she casts it from.