Cassiopeia vs Quinn — Top Lane Matchup Guide

How to win lane as Cassiopeia against Quinn · 55% win rate over 60 Emerald+ games · Updated 2026-07-27

Verdict: Cassiopeia is favoured — Cassiopeia owns 4 of the 7 game windows to Quinn's 1. Cassiopeia wins 55% of games vs Quinn in top lane (60 Emerald+ games analysed).

Favour timeline — who owns each window

StageFavouredWhy
Level 1QuinnLevel 1 he just needs to poke — Vault knockback and Harrier-charged autos chip you while you sit on one ability with no Q poison economy to punish back.
Level 2Even / skillAround level 2-3 you can prime-and-Twin-Fang, but his ranged poke and burst still trade roughly even until your poison and refunds fully ramp.
Level 3CassiopeiaFull Q-into-E online: Twin Fang costs almost nothing into a Q-poisoned target, so your continuous DoT-fed chain out-grinds his single bursts of Harrier poke.
Levels 4-5CassiopeiaW Miasma grounds his Vault — pre-placed on his escape path it strips the dash recast that defines his kite, and Twin Fang shreds him while he's stuck.
Level 6CassiopeiaPetrifying Gaze ends his all-in: he Vaults or steps to auto facing you, you R the cone for the stun and Twin-Fang the duration into a kill he can't disengage.
First itemCassiopeiaLiandry'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+ itemsEven / skillA 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.

Early game (levels 1–5)

Level 1 is his — you have one ability and no poison economy, so his Vault knockback plus a couple of Harrier-charged autos chip you for free before Twin Fang is online. Don't throw a naked Q he 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 his single-burst poke, and you never need to chase — let him walk into the poisoned wave.

Read the rest of this matchup

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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