Cassiopeia vs Katarina — Mid Lane Matchup Guide

How to win lane as Cassiopeia against Katarina · 50.85% win rate over 1,176 Emerald+ games · Updated 2026-07-27

Verdict: Cassiopeia is favoured — Cassiopeia owns 7 of the 7 game windows. Cassiopeia wins 50.85% of games vs Katarina in mid lane (1,176 Emerald+ games analysed).

Favour timeline — who owns each window

StageFavouredWhy
Level 1CassiopeiaLevel 1 favors Cassiopeia because Katarina has no ranged tool and must approach through poison-poke range to do anything.
Level 2CassiopeiaLevel 2 stays in Cassiopeia's favor as Katarina's dagger-based combo is easily punished before she has reset fodder nearby.
Level 3CassiopeiaLevel 3 continues to favor Cassiopeia since dagger placement near her is instantly punishable with Miasma and Q poison.
Levels 4-5CassiopeiaLevels 4-5 remain lopsided because Katarina still lacks a safe way to engage without eating full poison stacks first.
Level 6CassiopeiaLevel 6 favors Cassiopeia as Katarina's ultimate roots her in an animation that a fresh Miasma or poison stack can punish severely.
First itemCassiopeiaCassiopeia's first item poison ramp threatens to out-damage even her ultimate's burst if she mistimes the channel.
Two+ itemsCassiopeiaTwo items in, Cassiopeia's stun-burst combo can delete Katarina outright before her reset-chain engine ever gets started.

Early game (levels 1–5)

Katarina wants to land an early kill to snowball her E dagger-reset chain, but she has no way to do that safely into your ranged poison poke. Keep chunking her with Q from max range and never let her stack daggers around you unpunished — every dagger she throws near you is a Miasma trap waiting to happen. Because she has no natural escape besides E resets, a well-timed poison stack forces her out of all-in range entirely. Play patient: she has to make the first mistake since she can't out-poke you.

Read the rest of this matchup

The full Cassiopeia vs Katarina 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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Playing the other side? Katarina vs Cassiopeia guide →
All Cassiopeia mid lane matchups →