Kai'Sa
Computed from 474,834 ranked Solo/Duo games collected through the Riot API · patch 26.21.
| Role | Win Rate | Pick Rate |
|---|---|---|
| ADC | 49.9% | 19.2% |
Kai'Sa is banned in about 4.2% of games at this tier, one figure for the whole champion since bans happen before roles are picked. What ban rate measures.
Kai'Sa's ADC win rate is 0.1 percentage points below an even 50% — Should I Dodge's win-probability model varies by about 4.8 percentage points of standard deviation from lobby to lobby across all ranks, purely from which champions get drawn, so this gap is smaller than that noise, not solid evidence the champion is unusually strong or weak right now.
Kai'Sa is tracked in exactly one role at this tier scope, ADC — so there's no ambiguity below about which lane the rest of this page's per-tier, threat, and counters reporting describes.
Kai'Sa's ADC Build
In Emerald+ games on patch 26.21, Kai'Sa's most common ADC setup runs Exhaust and Flash with Lethal Tempo, maxes Q first, and builds Statikk Shiv, Guinsoo's Rageblade, and Nashor's Tooth — 49.9% win rate over 173,981 games.
- Summoner spells
Exhaust + Flash
50.3%45,059 games - Runes
Lethal Tempo + Inspiration
51.7%12,601 games - Skill priority Q > E > W 50.5%149,055 games
- Starter
Doran's Bow + Health Potion ×2
49.8%154,422 games - Boots
Gluttonous Greaves
54.0%28,662 games - First three items
Statikk Shiv → Guinsoo's Rageblade → Nashor's Tooth
55.5%12,667 games
Kai'Sa's ADC Win Rate By Tier
| Tier | Win Rate | Pick Rate | Games | Edge (noise-widths) | Clears 0.5σ? |
|---|---|---|---|---|---|
| Iron | 49.9% | 14.0% | 31,869 | 0.02σ | No |
| Bronze | 50.0% | 15.7% | 43,278 | 0.00σ | No |
| Silver | 49.7% | 18.0% | 61,131 | 0.05σ | No |
| Gold | 49.9% | 19.8% | 77,176 | 0.02σ | No |
| Platinum | 50.1% | 21.2% | 88,484 | 0.02σ | No |
| Emerald | 49.8% | 22.2% | 74,320 | 0.03σ | No |
| Diamond | 50.0% | 22.0% | 67,344 | 0.00σ | No |
| Master | 49.6% | 19.2% | 29,218 | 0.09σ | No |
| Grandmaster | 51.4% | 14.8% | 1,425 | 0.19σ | No |
| Challenger | 48.0% | 12.8% | 263 | 0.16σ | No |
Kai'Sa's ADC win rate ranges from 48.0% at Challenger to 51.4% at Grandmaster across the 10 of 10 ranked tiers with at least 200 games in this role — a 3.4-point spread. Measured against each tier's own noise floor, that's 0.19σ at Grandmaster and 0.16σ at Challenger, with neither clearing the 0.5σ bar Should I Dodge itself requires before calling a reading anything but Neutral.
- Power curve
- Late game
- Threats
- Sustained auto-attack damage and stealth
Curated reads, not measured: how we judge these
Who Counters Kai'Sa in ADC?
Champions That Counter Kai'Sa
| Champion | Win Rate vs Kai'Sa | Edge (noise-widths) |
|---|---|---|
Mordekaiser |
58.7% | 1.81σ |
Jax |
56.5% | 1.36σ |
Heimerdinger |
55.5% | 1.16σ |
Swain |
55.5% | 1.14σ |
Irelia |
55.3% | 1.11σ |
Champions Kai'Sa Counters
| Champion | Win Rate vs Kai'Sa | Edge (noise-widths) |
|---|---|---|
Akali |
36.1% | 2.91σ |
Volibear |
39.2% | 2.25σ |
Aatrox |
41.2% | 1.85σ |
Nidalee |
42.1% | 1.65σ |
Gangplank |
42.6% | 1.55σ |
At most five champions are listed in each direction for Kai'Sa: 5 listed as countering it here, 5 it counters back, with a tight, 3-point spread — none of them stand out much from the others among them — most matchups you could actually face in a real game simply aren't covered.
Our Read on Kai'Sa
Reading the Numbers
Kai'Sa's kit is genuinely built around itemization rather than a single strong baseline: her abilities evolve once she's stacked enough bonus attack damage, attack speed, or ability power, so two Kai'Sa players with different builds can end up playing almost different champions by the late game. That flexibility means her win rate reflects an average across a lot of different build paths and skill levels rather than one clean read on the champion, and her moderate pick rate alongside a low ban rate both track a champion that's popular but not widely feared in draft.
When a Teammate Locks Kai'Sa
A Kai'Sa teammate is playing toward a late-game spike that depends on hitting stat thresholds, so give her a lane that survives long enough to reach it rather than one forced to fight early before her abilities evolve. Her ultimate, Killer Instinct, dashes her to an enemy marked by her passive, Plasma, and shields her on the way in -- create chaos for her to jump into, and that's exactly the opening she needs.
When the Enemy Has Kai'Sa
Before her abilities evolve, an enemy Kai'Sa is manageable, but she grows into a real threat once Plasma lets her mark a target and Killer Instinct dashes her straight to them with a shield along the way. Focus her down before her build comes online if you can, and once she's evolved, keep track of how isolated your squishiest targets are -- that ultimate specifically rewards diving whoever's easiest to reach alone.
Last reviewed 13 October 2026