- Win Rate
- 49.0%
- Pick Rate
- 6.4%
- Ban Rate
- 2.8%
Kai'Sa Synergies & Best Teammates
- Patch
- 26.19
- Games
- 5,795
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 4, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Who Kai'Sa wins with in Patch 26.19: every teammate in every role, measured against what both champions win on their own, so a strong pair is real synergy and not two strong champions.
- Best support
- Alistar55.1% · 267 games
- Best jungler
- Viego53.0% · 583 games
- Best mid laner
- Lux56.5% · 375 games
- Best top laner
- Gangplank53.9% · 293 games
Kai'Sa Synergies - Patch 26.19
204 teammate pairings measuredKai'Sa (Bot) wins most with Alistar as support (55.1%, +5.4 over expected) and Gangplank as top laner (53.9%, +5.0). The weakest pairing is Briar as jungler at 44.3%, 7.3 points below expected. The most common lane partner is Nautilus, in 6.8% of Kai'Sa's games.
Best supports for Kai'Sa
| Teammate | Win Rate | Synergy | Games |
|---|---|---|---|
 Teemo | 69.0% | +17.1 | 42 |
 Alistar | 55.1% | +5.4 | 267 |
 Nami | 55.6% | +3.6 | 495 |
 Leona | 53.3% | +2.0 | 576 |
 Nautilus | 48.9% | +0.7 | 818 |
 Rell | 54.8% | +3.3 | 239 |
Weakest pairings
| Teammate | Win Rate | Synergy | Games |
|---|---|---|---|
 Tahm Kench | 42.3% | −6.6 | 168 |
 Taric | 47.0% | −7.9 | 117 |
 Karma | 45.0% | −3.9 | 282 |
Best junglers for Kai'Sa
| Teammate | Win Rate | Synergy | Games |
|---|---|---|---|
 Viego | 53.0% | +3.0 | 583 |
 Shaco | 52.1% | +4.0 | 355 |
 Talon | 55.9% | +5.3 | 220 |
 Amumu | 56.8% | +4.9 | 222 |
 Zed | 53.4% | +6.9 | 118 |
 Lee Sin | 49.0% | +1.6 | 453 |
Weakest pairings
Strongest and weakest Kai'Sa pairings
- Alistar · support
Gangplank · top laner- Nami · support
Malphite · top laner
Gragas · top laner
Briar · jungler
Synergy is the win rate with that teammate minus the win rate the two champions would be expected to reach together from their own win rates in their roles (log5). Lists are ranked by the low end of each synergy's 95% range, so a small sample cannot lead a list on luck alone.
Kai'Sa Team Synergy Checker
Pick your teammates
Pick your teammates to see how each one moves Kai'Sa's Bot win rate, and an estimate for the whole team.
An estimate: it adds each pairing's measured synergy on the odds scale and assumes the pairings are independent. Real teams also depend on the enemy draft and the players.
Help us maintain accuracy! If you notice incorrect stats, missing data, or any issues, your feedback directly improves the quality of our data for the entire community.
Kai'Sa Synergies FAQ - Patch 26.19
Who is the best support for Kai'Sa?
Alistar. Kai'Sa (Bot) wins 55.1% of 267 ranked games with Alistar as support, 5.4 points above what the two champions win separately. Also strong: Nami, Leona.
Who is the best jungler for Kai'Sa?
Viego. Kai'Sa (Bot) wins 53.0% of 583 ranked games with Viego as jungler, 3.0 points above what the two champions win separately. Also strong: Shaco, Talon.
Who is the best mid laner for Kai'Sa?
Lux. Kai'Sa (Bot) wins 56.5% of 375 ranked games with Lux as mid laner, 4.1 points above what the two champions win separately. Also strong: Nasus, Viktor.
Which champions does Kai'Sa synergize with?
This patch, Kai'Sa (Bot) gets the biggest lift from Alistar (support, 55.1%), Gangplank (top laner, 53.9%), Nami (support, 55.6%).
Which teammates are bad with Kai'Sa?
Kai'Sa (Bot) does worst next to Briar (jungler, 44.3%), Gragas (top laner, 38.5%), Malphite (top laner, 47.7%) — each below what the two champions win on their own.
How is synergy calculated?
From ranked solo and flex games this patch: the win rate when both champions are on the same team, minus the win rate expected from each champion's own win rate in its role. A positive number means the pair wins more together than their individual strength explains. Pairings need at least 40 games to be listed.