- Win Rate
- 49.1%
- Pick Rate
- 7.0%
- Ban Rate
- 2.5%
Kai'Sa Synergies & Best Teammates
- Patch
- 26.20
- Games
- 13,897
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 18, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Who Kai'Sa wins with in Patch 26.20: 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
- Bard55.6% · 151 games
- Best jungler
- Sylas53.3% · 276 games
- Best mid laner
- Anivia60.5% · 114 games
- Best top laner
- Kennen57.3% · 103 games
Kai'Sa Synergies - Patch 26.20
204 teammate pairings measuredKai'Sa (Bot) wins most with Bard as support (55.6%, +8.8 over expected) and Seraphine as support (55.4%, +4.4). The weakest pairing is Elise as jungler at 37.5%, 13.5 points below expected. The most common lane partner is Thresh, in 7.1% of Kai'Sa's games.
Best supports for Kai'Sa
| Teammate | Win Rate | Synergy | Games |
|---|---|---|---|
 Bard | 55.6% | +8.8 | 151 |
 Seraphine | 55.4% | +4.3 | 634 |
 Thresh | 52.9% | +2.5 | 916 |
 Soraka | 54.8% | +4.4 | 341 |
 Ashe | 57.9% | +10.7 | 57 |
 Nautilus | 49.4% | +0.8 | 900 |
Weakest pairings
Best junglers for Kai'Sa
| Teammate | Win Rate | Synergy | Games |
|---|---|---|---|
 Sylas | 53.3% | +5.5 | 276 |
 Kayn | 52.7% | +2.4 | 950 |
 Vi | 54.8% | +5.2 | 270 |
 Graves | 51.8% | +3.9 | 334 |
 Warwick | 54.3% | +2.9 | 481 |
 Volibear | 55.8% | +6.9 | 120 |
Weakest pairings
Strongest and weakest Kai'Sa pairings
- Bard · support
- Seraphine · support
Kennen · top laner
Yuumi · support
Lulu · support
Elise · 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 26.20
Who is the best support for Kai'Sa?
Bard. Kai'Sa (Bot) wins 55.6% of 151 ranked games with Bard as support, 8.8 points above what the two champions win separately. Also strong: Seraphine, Thresh.
Who is the best jungler for Kai'Sa?
Sylas. Kai'Sa (Bot) wins 53.3% of 276 ranked games with Sylas as jungler, 5.5 points above what the two champions win separately. Also strong: Kayn, Vi.
Who is the best mid laner for Kai'Sa?
Anivia. Kai'Sa (Bot) wins 60.5% of 114 ranked games with Anivia as mid laner, 9.2 points above what the two champions win separately. Also strong: Zed, Yasuo.
Which champions does Kai'Sa synergize with?
This patch, Kai'Sa (Bot) gets the biggest lift from Bard (support, 55.6%), Seraphine (support, 55.4%), Kennen (top laner, 57.3%).
Which teammates are bad with Kai'Sa?
Kai'Sa (Bot) does worst next to Elise (jungler, 37.5%), Lulu (support, 43.7%), Yuumi (support, 40.1%) — 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.