Kai'Sa

Bottom

You Can’t Outrun the Void

Massive dueling potential and scaling damage.

Precision

Improved attacks and sustained damage

Fleet Footwork

Attacking and moving builds energy stacks. At 100 stacks, your next attack heals you and grants increased MS.
Overheal

Excess healing on you becomes a shield.
Legend: Alacrity

Takedowns on enemies grant permanent Attack Speed.
Coup De Grace

Deal 7% more damage to low health champions. Gain AD/AP after kills or assists.

Sorcery

Empowered abilities and resource manipulation

Absolute Focus

While above 70% health, gain up to +40 Ability Power or +28 Attack Damage (based on level), Adaptive.
Gathering Storm

Gain increasing amounts of AD or AP, Adaptive over the course of the game.

Offense

+9% Attack Speed
Flex

+6 AD or 10 AP
Defense

+5 Armor

WhyFleet Footwork

Fleet Footwork's bonus healing scales helps your sustain through rough early laning phase so you can scale into your late-game hypercarry-ness.

WhyOverheal

Overheal's extra bit of health buffer is great for all-in duels if you're able to build the shield before diving in with [R]. Items like Deaths Dance and Legend: Bloodline will help you build and shield and sustain in lane.

WhyLegend: Alacrity

Kaisa is all about auto attacks to build her passive stacks to pump out damage so Alacrity is the ultimate choice here.

WhyCoup De Grace

Coup De Grace's execution damage helps you to shred the enemy backline target's quickly and seamlessly so that you're able to get out and move on for more damage.

WhyAbsolute Focus

Absolute Focus's extra bit of Attack Damage is incredibly value and key to your dueling power. Death's Dance and Legend: Bloodline help keep you above the health threshold.

WhyGathering Storm

Gathering Storm is your late game damage insurance policy, allowing you to scale and take over fights/duel any in a 30min+ game.