How to win lane as Kassadin against Yasuo · 51.92% win rate (5,531 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
He stat-checks the weak era and loses the strong one — give him nothing for eleven levels, then everything after.
Track: Yasuo's W — Wind Wall (25–17s cooldown). Blocks every projectile for its duration — hold your poke until it is spent.
Read from Kassadin's seat: which stage windows this plan plays for against Yasuo.
This is Kassadin's own plan; across 5,531 pooled games the lane is leaning Kassadin.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Yasuo | Level 1 is his — Steel Tempest on a 4-second cooldown out-trades one Null Sphere, and his Flow shield eats the only spell you have. |
| Level 2 | Yasuo | His shield passive keeps letting him tank trades for free as the lane continues. |
| Level 3 | Yasuo | Level 3 stays his — Wind Wall blocks the Null Sphere you would trade with and his Flow shield eats whatever gets through. |
| Levels 4-5 | Yasuo | Levels 4-5 stay his — Steel Tempest's tornado into autos is the scarier all-in, and Wind Wall (25 seconds at rank 1) still blocks the Null Sphere you'd trade with. |
| Level 6 | Yasuo | Wind Wall still blocks your core engage tool at this exact power spike, keeping the phase in his favor. |
| First item | Even / skill | Wind Wall continues to threaten your Riftwalk-Q engage even as you gain item power, so this phase still favors him. |
| Two+ items | Kassadin | Once you can bait Wind Wall and engage from an angle it can't cover, your burst finally outpaces his shield-tanked damage, favoring you late. |
Yasuo's Wind Wall completely negates your primary poke tool, and his movement-based shield passive lets him no-cost tank the trades you do land, so you're stuck in a lane where your core kit is actively countered before you even reach level 6. Track Yasuo Wind Wall: matchup-defining — 25s at rank 1 down to 17s at rank 5 and it stands 4s; hold Null Sphere until it expires.
Pooled Emerald+ win rates from Kassadin's side, sampled July 2026.
The full Kassadin vs Yasuo 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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Kassadin, slightly — a 51.92% win rate edge over 5,531 games; execution can flip it.
Mostly — Kassadin has a small statistical edge (51.92% win rate), but execution decides this lane far more than the pick does.
Not a hard counter — Kassadin has a slight edge (51.92% win rate), and play quality decides the rest.
Kassadin takes Fleet Footwork on the Precision tree with Presence of Mind, Legend: Haste and Last Stand, and Sorcery secondary (Manaflow Band and Transcendence) vs Yasuo.
Start Doran's Shield + Health Potion and back for Catalyst of Aeons (≈1300g) — the survival battery. Build Rod of Ages first, then Seraph's Embrace, with Plated Steelcaps / Sorcerer's.
Playing the other side? Yasuo vs Kassadin guide →
All Kassadin mid lane matchups →
More Kassadin mid lane matchups: vs Viktor · vs Vladimir · vs Xerath · vs Yone · vs Zed · vs Ziggs
Also played in: Top Lane