Cassiopeia vs Karma — Mid Lane Matchup Guide

How to win lane as Cassiopeia against Karma · 50.75% win rate (1,326 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15

Verdict: Cassiopeia is slightly favoured — 50.75% win rate over 1,326 games, and Cassiopeia's game plan below claims 4 of the 7 stage windows.

At a glance

Her combo chunks, your stream kills — survive the rotation, then fang her down in the fifteen seconds she has nothing.

Track: Karma's W — Focused Resolve (12s cooldown). The root tether — break it with range or line of sight.

Do

  • Bait the combo before walking forward
  • R-stun her engage commit face-on
  • Q-E chain the cooldown gap relentlessly

Don't

  • Stand mid-range while her combo is loaded
  • Petrify defensively when it can win the fight
  • Trade fang-for-burst at half HP

Runes & build vs Karma

Start
Doran's Ring + 2 Health Potions
First back
Tear of the Goddess + Dark Seal (≈800g)
First item
Seraph's Embrace
Then
Liandry's Torment
Boots
No boots — passive move speed (slot goes to Mercury's-substitute MR if needed)
Runes
Conqueror (Precision): Presence of Mind, Legend: Haste, Last Stand · Sorcery: Manaflow Band, Transcendence · Shards: Adaptive Force, Adaptive Force, Health

Favour timeline — the windows in Cassiopeia's game plan

Read from Cassiopeia's seat: which stage windows this plan plays for against Karma.

StageFavouredWhy
Level 1KarmaLevel 1 favors Karma since her Q has better range and mana efficiency for safe poke trades.
Level 2KarmaLevel 2 still favors Karma as she can layer RQ's root for extra poke and lane pressure.
Level 3Even / skillLevel 3 is a skill matchup since Cassiopeia's poison-E combo starts catching up in raw trade damage if played correctly.
Levels 4-5CassiopeiaLevels 4-5 swing to Cassiopeia as her all-in burst begins outpacing Karma's poke-only damage profile.
Level 6CassiopeiaLevel 6 favors Cassiopeia because her ultimate threatens a full stun-burst kill, while Karma's ultimate is purely defensive/utility.
First itemCassiopeiaCassiopeia's first item poison ramp decisively out-damages Karma's flat poke scaling.
Two+ itemsCassiopeiaTwo items in, Cassiopeia's burst and DPS both exceed anything Karma's utility-focused kit can trade back.

How to beat Karma as Cassiopeia: the early game

Karma out-ranges you 950 to 850 in the poke war at levels 1-2 with Inner Flame on a 9-second cooldown, so avoid trading Q for Q in neutral positions. Farm with Q only when she's used hers, and watch for Focused Resolve rooting you for a jungler gank on your immobile self. Don't waste Miasma early just to threaten trades — save it to punish her when she steps past minions to poke.

Hardest and easiest matchups for Cassiopeia in mid lane

Pooled Emerald+ win rates from Cassiopeia's side, sampled July 2026.

Hardest

Easiest

Read the rest of this matchup

The full Cassiopeia vs Karma 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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Common questions

Who wins Cassiopeia vs Karma in mid lane?

Cassiopeia, slightly — a 50.75% win rate edge over 1,326 games; execution can flip it.

Is Cassiopeia vs Karma a skill matchup?

Mostly — Cassiopeia has a small statistical edge (50.75% win rate), but execution decides this lane far more than the pick does.

Does Cassiopeia counter Karma?

Not a hard counter — Cassiopeia has a slight edge (50.75% win rate), and play quality decides the rest.

What runes does Cassiopeia take vs Karma?

Cassiopeia takes Conqueror on the Precision tree with Presence of Mind, Legend: Haste and Last Stand, and Sorcery secondary (Manaflow Band and Transcendence) vs Karma.

What should Cassiopeia build vs Karma?

Start Doran's Ring + 2 Health Potions and back for Tear of the Goddess + Dark Seal (≈800g). Build Seraph's Embrace first, then Liandry's Torment, with No boots — passive move speed (slot goes to Mercury's-substitute MR if needed).

Related guides

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

More Cassiopeia mid lane matchups: vs Galio · vs Hwei · vs Irelia · vs Kassadin · vs Katarina · vs LeBlanc

Also played in: Top Lane