How to win lane as Cassiopeia against Yasuo · 53.61% win rate over 194 Emerald+ games · Updated 2026-07-27
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Even / skill | Level 1 you both lack tools — one ability, no poison stacking, and his Q out-pokes your single Noxious Blast, so it's an even farm phase. |
| Level 2 | Cassiopeia | At 2 your Q-into-Twin-Fang trade beats his Q poke for the bonus poisoned-target damage, and crucially his Windwall walls neither your placed Q zone nor your point-blank E. |
| Level 3 | Cassiopeia | Miasma grounds his E and your full Q-E poison out-DPSes him — he can't dash in or out of the cloud to escape the ticks. |
| Levels 4-5 | Cassiopeia | Ranks in Q and E let you chain near-continuous Twin Fangs while Miasma cancels every dash, so you win all extended trades. |
| Level 6 | Cassiopeia | Petrifying Gaze stuns him out of his all-in or mid-E before he has any crit, converting your poke lead into a kill. |
| First item | Cassiopeia | Your first-item poison DPS plus passive move speed dominate lane — you kite his dashes and his single IE component can't crit-trade with your sustained ticks yet. |
| Two+ items | Yasuo | Yasuo out-scales hard: IE plus passive double-crit autos and knockup-into-R run you down while you stay squishy and short-ranged. |
Level 1 is a coinflip — you have one ability and no poison to stack, his Q out-pokes your single Noxious Blast, so just farm safely. The moment you hit 2 with Q+E, start priming: land Noxious Blast on him, then Twin Fang does its bonus poisoned-target damage and refunds. His Windwall does nothing in this lane — your Q is a placed ground zone and your E is a point-blank nuke, neither is a projectile to wall. At 3, drop Miasma the instant he winds up an E; the ground cancels his dash and he's stuck eating poison.
The full Cassiopeia 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.
Become a Founding Member — $1.99/month →🔒 Secure checkout · 💰 7-day money-back guarantee · ✋ Cancel anytime
Early Access price — $3.99/month for new members after launch.
Playing the other side? Yasuo vs Cassiopeia guide →
All Cassiopeia top lane matchups →
Also played in: Mid Lane