PatchImpact
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Kai'Sa Patch History

Trending up — 2 of the last 3 changes were buffs.

Every tracked buff, nerf and adjustment for Kai'Sa, newest first — with the exact numbers from each patch. Latest change in Patch 26.15.

Updated

5Buffs
1Nerfs
0Adjustments

Change Timeline

  1. Patch 26.15

    BuffJul 28, 2026

    Kai'Sa's passive scaling has been improved for better late game performance.

    Passive - Second Skin

    • Caustic Wounds: 4 - 24 (Champion Level) (+12% Ability Power) ⇒ 4 - 30 (Champion Level) (+12% Ability Power)
    Patch 26.15 details

  2. Patch 26.13

    BuffJun 23, 2026

    Kai'Sa's W cooldown is reduced and R shield is increased.

    W - Void Seeker

    • Cooldown: 22 / 20 / 18 / 16 / 14 ⇒ 20 / 18.5 / 17 / 15.5 / 14

    R - Killer Instinct

    • Shield: 70 / 90 / 110 (+90 / 135 / 180% AD) (+120% AP) ⇒ 100 / 150 / 200 (+90 / 135 / 180% AD) (+120% AP)
    Patch 26.13 details

  3. Patch 25.23

    NerfNov 18, 2025

    Kai'Sa received a nerf to her base armor and ultimate cooldown.

    Base Stats

    • Base Armor: 27 ⇒ 25

    R - Killer Instinct

    • Cooldown: 120 / 90 / 60 ⇒ 130 / 100 / 70
    Patch 25.23 details

  4. Patch 25.06

    BuffMar 18, 2025

    Kai'Sa received buffs to her armor, health regeneration, and ultimate cooldown.

    Base Stats

    • Base Armor: 25 ⇒ 27
    • Base Health Regeneration: 3.5 ⇒ 4

    R - Killer Instinct

    • Cooldown: 130 / 100 / 70 ⇒ 120 / 90 / 60 seconds
    Patch 25.06 details

  5. Patch 14.8

    BuffApr 16, 2024

    Q damage increased.

    Q - Icathian Rain

    • Damage per Missile: 40/55/70/85/100 (+50% bonus AD) (+20% AP) ⇒ 40/55/70/85/100 (+55% bonus AD) (+20% AP)
    Patch 14.8 details

  6. Patch 14.4

    BuffFeb 21, 2024

    Kai'Sa's ultimate range has been increased.

    R - Killer Instinct

    • Cast Range: 1500/2250/3000 ⇒ 2000/2500/3000
    Patch 14.4 details

Kai'Sa FAQ

Was Kai'Sa buffed or nerfed in Patch 26.15?
Kai'Sa was buffed in Patch 26.15 (Caustic Wounds 4→4).
What changed for Kai'Sa in Patch 26.15?
Caustic Wounds 4→4. Every number is quoted verbatim from the official Patch 26.15 notes.
When was Kai'Sa's last change?
Patch 26.15, released 28 July 2026.
How many times has Kai'Sa been changed?
Kai'Sa has changed 6 times in the patches we track, from Patch 14.4 to Patch 26.15 — 5 buffs, 1 nerfs and 0 adjustments.