
Base stats
Values at level 1
1
Health
640
+102 / lvl
Health regen
4
+0.6 / lvl
Mana
345
+40 / lvl
Mana regen
8.2
+0.7 / lvl
Armor
25
+4.2 / lvl
Magic resist
33
+1.1 / lvl
Attack damage
59
+2.6 / lvl
Attack speed
0.644
+1.8% / lvl
Attack range
525
Does not scale
Move speed
335
Does not scale
Abilities

P
Second Skin
Innate - Living Weapon: Kai'Sa can evolve each of her basic abilities by gaining a set amount of permanent stats from items and stat growth, granting them additional effects. Evolving an ability causes her to enter a 2-second cast time. The upgrade is lost if the stat requirement is no longer met. Innate - Plasma: Kai'Sa's basic attacks on-hit and Void Seeker apply stacks of Plasma to enemies for 4 seconds, refreshing on subsequent applications and stacking up to 5 times. Basic attacks each apply 1 stack and Void Seeker applies 2 stacks, increased to 3 if it is Void Seeker 2. Her and nearby allies' immobilizing effects and polymorphs against enemy champions will also apply a stack of Plasma. Innate - Caustic Wounds: Plasma stacks applied by Kai'Sa's basic attacks or Void Seeker deal (+ 12% AP) additional magic damage plus (+ 3% AP) additional magic damage per Plasma stack before application, up to a total of (+ 24% AP) additional magic damage at 4 Plasma stacks before application. The fifth stack against a target consumes them all to deal additional magic damage equal to 15% (+ 6% per 100 AP) of the target's missing health, capped at 400 against monsters.
- Range
- 2750

Q
Icathian Rain
PhysicalActive: Kai'Sa releases a swarm of 6 missiles that evenly distributes among nearby visible enemies, each one hitting their target after 0.4 seconds to deal physical damage. Minions below 35% health take double damage. Non-minions take 25% damage from missiles beyond their first. Second Skin: Requires 100 attack damage from items and stat growthto upgrade – Icathian Rain instead fires 12 missiles. A nearby enemy is required to cast this ability.
- Cooldown
- 10 / 9 / 8 / 7 / 6s
- Cost
- 55 Mana
- Range
- 600
- Physical Damage Per Missile
- 40 / 55 / 70 / 85 / 100 (+ 55% bonus AD) (+ 20% AP)
- Reduced Damage Per Missile
- 10 / 13.75 / 17.5 / 21.25 / 25 (+ 13.75% bonus AD) (+ 5% AP)
- Total Single-Target Damage
- 90 / 123.75 / 157.5 / 191.25 / 225 (+ 123.75% bonus AD) (+ 45% AP)
- Total Evolved Single-Target Damage
- 150 / 206.25 / 262.5 / 318.75 / 375 (+ 206.25% bonus AD) (+ 75% AP)

W
Void Seeker
MagicActive: Kai'Sa fires a void bolt in the target direction that briefly grants sight around its trajectory as it travels, deals magic damage to the first enemy hit, applies 2 Plasma, and reveals them for 4 seconds. Second Skin: Requires 100 ability power from items to upgrade – Void Seeker applies 3 Plasma instead and refunds 75% of its cooldown if it hits an enemy champion.
- Cooldown
- 20 / 18.5 / 17 / 15.5 / 14s
- Cost
- 55 / 60 / 65 / 70 / 75 Mana
- Range
- 3000
- Magic Damage
- 30 / 55 / 80 / 105 / 130 (+ 130% AD) (+ 45% AP)

E
Supercharge
Active: Kai'Sa charges up over the cast time, during which she is still able to move, becoming ghosted and gaining bonus movement speed for the duration, with the effectiveness increased by 0% / 10% (based on level). After completing the charge, she gains bonus attack speed for 4 seconds, during which her attacks have a lower windup of 6.44% and an increased missile speed. Supercharge's current cooldown is reduced by 0.5 seconds on-attack. Second Skin: Requires 100% attack speed from items and stat growthto upgrade – Supercharge grants invisibility at the start of the cast time for 0.5 seconds.
- Cooldown
- 16 / 14.5 / 13 / 11.5 / 10s
- Cost
- 30 Mana
- Range
- 1
- Minimum Movement Speed
- 55 / 60 / 65 / 70 / 75%
- Maximum Movement Speed
- 110 / 120 / 130 / 140 / 150%
- Bonus Attack Speed
- 40 / 50 / 60 / 70 / 80%

R
Killer Instinct
Active: Kai'Sa grants herself a shield for 2 seconds and dashes to a target location near a visible enemy champion that was affected by Plasma within the last 4 seconds. The shield's duration is refreshed when the dash ends. An enemy champion within range and affected by Plasma is required to cast this ability. Killer Instinct resets Kai'Sa's basic attack timer. Kai'Sa can cast any of her abilities during the dash.
- Cooldown
- 130 / 100 / 70s
- Cost
- 100 Mana
- Range
- 2000 / 2250 / 2500 / 2750 / 3000
- Shield Strength
- 100 / 150 / 200 (+ 90 / 135 / 180% AD) (+ 120% AP)
Skins
15 in the archive















