How to win lane as Cassiopeia against Quinn · 44.51% win rate (173 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
She pokes in bursts, you poke forever — survive the early chip and the treadmill out-grinds her.
Track: Quinn's E — Vault (12–8s cooldown). Blind + disengage in one button — fight while it is down.
Read from Cassiopeia's seat: which stage windows this plan plays for against Quinn.
This is Cassiopeia's own plan; across 173 pooled games the lane is Quinn-favoured.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Quinn | Level 1 she just pokes — Vault and Harrier autos chip you while you sit on one ability; her blind stops autos, never Twin Fang, but you have no poison yet. |
| Level 2 | Even / skill | Around level 2-3 you can prime-and-Twin-Fang, but her ranged poke and burst still trade roughly even until your poison and refunds fully ramp. |
| Level 3 | Cassiopeia | Full Q-into-E online: Twin Fang costs almost nothing into a Q-poisoned target, so your continuous DoT-fed chain out-grinds her single bursts of Harrier poke. |
| Levels 4-5 | Cassiopeia | W Miasma grounds her Vault — pre-placed on her escape path it strips the dash recast that defines her kite, and Twin Fang shreds her while she's stuck. |
| Level 6 | Cassiopeia | Petrifying Gaze ends her all-in: she Vaults facing you, you R the cone for the stun, and the same R cancels a Behind Enemy Lines escape channel. |
| First item | Cassiopeia | Liandry's or Malignance plus your no-boots passive move speed lets you chase through Harrier kiting and turn poison ticks into a closing kill threat. |
| Two+ items | Even / skill | A two-item Quinn reclaims it — she kites outside your Q range and bursts you with Harrier autos while you stay squishy, so end the lane before that spike. |
Level 1 is her — you have one ability and no poison economy, so her Vault knockback plus a couple of Harrier-charged autos chip you for free before Twin Fang is online. Don't throw a naked Q she just nimble-kites; last-hit with the edge of Q and accept a little poke. By 2-3 the math flips: once a Q-poisoned target refunds your Twin Fang cooldown, your continuous chain DPS beats her single-burst poke, and you never need to chase — let her walk into the poisoned wave.
Pooled Emerald+ win rates from Cassiopeia's side, sampled July 2026.
The full Cassiopeia vs Quinn 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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Quinn — Cassiopeia wins only 44.51% of 173 games, so Cassiopeia plays this as the disadvantaged side.
Not really — Quinn holds a real statistical advantage (55.49% win rate), so Cassiopeia is the one working uphill.
No — Quinn counters Cassiopeia (Cassiopeia wins only 44.51% 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 Quinn.
Start Doran's Ring + 2 Health Potions and back for Tear of the Goddess + Dark Seal (≈800g). Build Seraph's Embrace / Liandry's Torment first, then Rylai's Crystal Scepter, with No boots — bank the gold into Zhonya's earlier.
Playing the other side? Quinn vs Cassiopeia guide →
All Cassiopeia top lane matchups →
More Cassiopeia top lane matchups: vs Ornn · vs Pantheon · vs Poppy · vs Renekton · vs Riven · vs Rumble