How to win lane as Cassiopeia against Syndra · 43.9% win rate (3,469 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
She outranges your entire kit and her burst beats your stream — dodge the QE line and only walk forward on her cooldown gaps.
Track: Syndra's E — Scatter the Weak (Stun, 15s cooldown). The QE stun cone starts every kill combo — stay off the line between her and her orbs.
Read from Cassiopeia's seat: which stage windows this plan plays for against Syndra.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Syndra | Dark Sphere hits instantly at 800 range while your delayed Q cannot answer her level 1 poke |
| Level 2 | Syndra | Her second sphere charge sets up the stun, and Miasma grounds a champion with no dashes |
| Level 3 | Syndra | Continued advantage as your poison DoT punishes her positioning more than her combo punishes yours |
| Levels 4-5 | Syndra | Same trend — she stacks Splinters of Wrath while you are still stacking Tear |
| Level 6 | Syndra | Unleashed Power executes low targets, so health you trade away becomes her kill |
| First item | Syndra | Your first item closes the gap, but she still opens fights from 925 range |
| Two+ items | Even / skill | Her passive true damage ignores the MR you bought, so range still decides it |
You're ahead in this matchup from the start — Syndra's stun-combo is scary in theory but her spheres are slow to gather and telegraphed, so as long as you don't stand still near stacked spheres, your poke and sustained damage win trades. Track Scatter the Weak is a flat 15s at every rank — that is your window to walk into 700 range and start fangs.
Pooled Emerald+ win rates from Cassiopeia's side, sampled July 2026.
The full Cassiopeia vs Syndra 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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Syndra — Cassiopeia wins only 43.9% of 3,469 games, so Cassiopeia plays this as the disadvantaged side.
Not really — Syndra holds a real statistical advantage (56.1% win rate), so Cassiopeia is the one working uphill.
No — Syndra counters Cassiopeia (Cassiopeia wins only 43.9% of games). Play it as the disadvantaged side and lean on the windows in the plan.
Cassiopeia takes Conqueror on the Precision tree with Presence of Mind, Legend: Haste and Last Stand, and Sorcery secondary (Manaflow Band and Transcendence) vs Syndra.
Start Doran's Ring + 2 Health Potions and back for Tear of the Goddess + Dark Seal (≈800g). Build Seraph's Embrace first, then Liandry's Torment, with No boots — passive move speed (slot goes to Mercury's-substitute MR if needed).
Playing the other side? Syndra vs Cassiopeia guide →
All Cassiopeia mid lane matchups →
More Cassiopeia mid lane matchups: vs Ryze · vs Swain · vs Sylas · vs Taliyah · vs Talon · vs Twisted Fate