How to win lane as Vayne against Kai'Sa · 51.53% win rate (21,709 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
A scaling mirror where your true damage cheats — survive the lane evenly and out-duel everything past two items.
Track: Kai'Sa's E — Supercharge (16–10s cooldown). Her reposition + stealth window — engage in the sixteen seconds after she burns it.
Read from Vayne's seat: which stage windows this plan plays for against Kai'Sa.
This is Vayne's own plan; across 21,709 pooled games the lane is leaning Vayne.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Kai'Sa | At Level 1 Kai'Sa's Plasma poke and range edge favour her. |
| Level 2 | Kai'Sa | At Level 2 her W and passive stacking give her the trading lead. |
| Level 3 | Kai'Sa | At Level 3 her burst window out-damages a stack-less Vayne. |
| Levels 4-5 | Kai'Sa | At Levels 4-5 her evolutions and E steroid keep her ahead in trades. |
| Level 6 | Kai'Sa | At Level 6 Killer Instinct gives her a stronger all-in than Vayne can answer early. |
| First item | Even / skill | At first item the lane evens as Final Hour and a saved Condemn cancel her dash. |
| Two+ items | Vayne | By two-plus items Silver Bolts and a wall-Condemn on her R flip it to Vayne. |
Levels 1-5 favour Kai'Sa — her Plasma-stack burst, W poke, and E attack-speed steroid let her out-trade Vayne before Silver Bolts ramps, so farm safe and dodge her missiles. She out-trades you before Silver Bolts ramps, so farm safely and take only the exchanges her cooldowns allow. Tumble to break her plasma count at two rather than three. Keep Condemn for her support's engage, and take the safe CS while she is paying mana for the wave.
Pooled Emerald+ win rates from Vayne's side, sampled July 2026.
The full Vayne vs Kai'Sa report continues with the mid-game plan, the late-game and teamfight plan, every power spike to play around, and the win conditions for both sides — plus cooldown tracking and the live enemy-jungle tracker inside the app.
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Vayne, slightly — a 51.53% win rate edge over 21,709 games; execution can flip it.
Mostly — Vayne has a small statistical edge (51.53% win rate), but execution decides this lane far more than the pick does.
Not a hard counter — Vayne has a slight edge (51.53% win rate), and play quality decides the rest.
Vayne takes Lethal Tempo on the Precision tree with Triumph, Legend: Bloodline and Coup de Grace, and Domination secondary (Taste of Blood and Treasure Hunter) vs Kai'Sa.
Start Doran's Blade + Health Potion and back for Cutlass / Recurve (≈1000g). Build Blade of the Ruined King first, then Guinsoo's / Terminus, with Berserker's Greaves.
Playing the other side? Kai'Sa vs Vayne guide →
All Vayne bot lane matchups →
More Vayne bot lane matchups: vs Heimerdinger · vs Jhin · vs Jinx · vs Kalista · vs Karthus · vs Kog'Maw