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 26.13.

2Buffs

1Nerfs

0Adjustments

Change Timeline

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
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
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