Kassadin vs Cassiopeia — Mid Lane Matchup Guide

How to win lane as Kassadin against Cassiopeia · 53.44% win rate over 393 Emerald+ games · Updated 2026-07-27

Verdict: Winnable despite the lane — Cassiopeia owns 4 of the 7 game windows to Kassadin's 3, yet the win rate favours Kassadin: survive their windows and the game is yours. Kassadin wins 53.44% of games vs Cassiopeia in mid lane (393 Emerald+ games analysed).

Favour timeline — who owns each window

StageFavouredWhy
Level 1CassiopeiaHer poison poke and range advantage win every level 1 trade you attempt
Level 2CassiopeiaLevel 2 is more of the same — Noxious Blast chip damage outpaces your short-range answers
Level 3CassiopeiaBy level 3 Twin Fang execute threat makes any low-HP trade lethal in her favor
Levels 4-5CassiopeiaLevels 4-5 she keeps the damage and range edge with no real tool for you to punish it
Level 6KassadinLevel 6 flips things — Riftwalk gives you a flank angle her long-cast Petrify can't easily stop
First itemKassadinOnce Nether Blade is stacked your sustained damage starts beating her poison over time
Two+ itemsKassadinFull build lets you blink past her zone control and burst her before she can kite away

Early game (levels 1–5)

Cassiopeia's poison poke and Twin Fang execute threat make early trades lopsided in her favor — you have no way to punish her ranged harass before level 6 gives you real mobility, so this phase is a pure farm-and-survive lane for you.

Read the rest of this matchup

The full Kassadin vs Cassiopeia 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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Related guides

Playing the other side? Cassiopeia vs Kassadin guide →
All Kassadin mid lane matchups →

Also played in: Top Lane