Lillia vs Cassiopeia — Top Lane Matchup Guide

How to win lane as Lillia against Cassiopeia · 46.74% win rate (353 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15

Verdict: Cassiopeia is slightly favoured — Lillia wins 46.74% of 353 games, and Cassiopeia pressures 5 of the 7 stage windows in the plan below. Play it patient and win your windows.

At a glance

She pokes, you jog through it — close the gap diagonally and make every trade end on your Q ring.

Track: Cassiopeia's W — Miasma (24–16s cooldown). Grounds you — dashes and leaps are disabled inside it.

Do

  • Approach at angles behind your speed
  • End every trade on the Q outer ring
  • Dodge Miasma — it's her whole reset button

Don't

  • Walk straight lines into poke
  • Trade without passive speed stacked
  • Force the W sweetspot on a kiting target

Runes & build vs Cassiopeia

Start
Doran's Ring + 2 Health Potions
First back
Oblivion Orb (≈800g) — cuts her healing
First item
Liandry's Torment
Then
Riftmaker / Rylai's Crystal Scepter
Boots
Mercury's Treads / Swifties
Runes
Grasp of the Undying (Resolve): Demolish, Second Wind, Overgrowth · Sorcery: Transcendence, Celerity · Shards: Adaptive Force, Adaptive Force, Health

Favour timeline — the windows in Lillia's game plan

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

StageFavouredWhy
Level 1Even / skillYou only have Q and she only has one rank of poison — nobody wins level 1, so last-hit at range and set the lane up.
Level 2CassiopeiaNoxious Blast plus Twin Fang (E, 0.75s) out-DPS your short hops the moment she has two abilities — don't trade into it.
Level 3CassiopeiaMiasma's slow, not its grounding, cancels your Q kite — you own no dash; stay at Swirlseed range and refuse to stand still.
Levels 4-5CassiopeiaEven in your best window her sustained poison out-chips your hit-and-run if you stop moving — you grind from the edge but she edges the trades.
Level 6CassiopeiaHer R face-stun pins you in poison with no dash; hold your own R as anti-engage rather than diving into her DPS.
First itemCassiopeiaHer first AP item turns the poison into a kill threat that out-paces your Liandry's W chunk in a straight fight.
Two+ itemsEven / skillYou reclaim it on tempo — your move speed and roams come online, but a fully-stacked Cassio still out-DPSes you, so convert before the true late game.

How to beat Cassiopeia as Lillia: the early game

Level 1 is a non-event — you only have Blooming Blows from range and she only has one rank of poison, so just farm with the Q tip and concede nothing. The trouble starts at 2-3: her Q poison plus Twin Fang out-DPSes my short hops, and her W grounds me so I can't kite out once she steps up. Do NOT try to stack Q sweetspots in her face here — chip with the outer edge of Q and the Swirlseed (E) slow from max range, never inside Twin Fang range.

Hardest and easiest matchups for Lillia in top lane

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

Hardest

Easiest

Read the rest of this matchup

The full Lillia 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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Common questions

Who wins Lillia vs Cassiopeia in top lane?

Cassiopeia, slightly — Lillia wins 46.74% of 353 games; winnable with the right plan.

Is Lillia vs Cassiopeia a skill matchup?

Mostly — Cassiopeia has a small statistical edge (53.26% win rate), but execution decides this lane far more than the pick does.

Does Lillia counter Cassiopeia?

No — if anything Cassiopeia has the slight edge (Lillia wins 46.74%), though it stays close.

What runes does Lillia take vs Cassiopeia?

Lillia takes Grasp of the Undying on the Resolve tree with Demolish, Second Wind and Overgrowth, and Sorcery secondary (Transcendence and Celerity) vs Cassiopeia.

What should Lillia build vs Cassiopeia?

Start Doran's Ring + 2 Health Potions and back for Oblivion Orb (≈800g) — cuts her healing. Build Liandry's Torment first, then Riftmaker / Rylai's Crystal Scepter, with Mercury's Treads / Swifties.

Related guides

Playing the other side? Cassiopeia vs Lillia guide →
All Lillia top lane matchups →

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