Gangplank vs Cassiopeia — Top Lane Matchup Guide

How to win lane as Gangplank against Cassiopeia · 55.16% win rate (397 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15

Verdict: Gangplank is favoured — 55.16% win rate over 397 games.

At a glance

Weather the poke — barrel her approach and cleanse the Miasma setup.

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

Do

  • Zone with barrels on her path
  • Q-poke gold off her step-ups
  • W-cleanse her Miasma setup

Don't

  • Place barrels she can pop free
  • Hold W too long
  • Fight with no barrels banked

Runes & build vs Cassiopeia

Start
Doran's Shield + Health Potion (vs her poke)
First back
Core component + boots (≈1300g)
First item
Trinity Force (Sheen + barrel slow)
Then
Infinity Edge
Boots
Mercury's Treads
Runes
Grasp of the Undying (Precision): Triumph, Legend: Alacrity, Last Stand · Resolve: Second Wind, Bone Plating · Shards: Adaptive Force, Adaptive Force, Magic Resist

Favour timeline — the windows in Gangplank's game plan

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

StageFavouredWhy
Level 1CassiopeiaShe has only a slow Noxious Blast skillshot and no Miasma or Twin Fang yet, so you Parrrley for the gold and set a free Powder Keg while her lone poison tick can't punish the step-up.
Level 2Even / skillAt level 2 she gets Miasma online but you still have one keg on a long cooldown — it's a genuine coin-flip on whether your Parrrley poke or her grounding-into-Twin-Fang lands first.
Level 3GangplankHer Miasma ground plus the Twin Fang cooldown refund off poison pins you in the cloud and out-DPSes you before your barrels are worth anything.
Levels 4-5GangplankRanked Q and W let her ground your retreat and chain near-continuous Twin Fang while your kegs die to one auto — she wins every extended trade in this window.
Level 6CassiopeiaPetrifying Gaze stuns you if you're facing her while you're grounded and her poison ramps; hold Remove Scurvy to cleanse it, but the duel still goes to her at first item as her Twin Fang scaling kicks in.
First itemEven / skillYour Sheen spike is the answer — empowered Parrrley detonating a chained Powder Keg bursts a no-resistance Cassiopeia, and your early gold lead from free farm is how you take this lane.
Two+ itemsGangplankSet barrels around terrain, bait the Miasma, and cleanse her R with Remove Scurvy — burst her in the explosion window now, because past three items she out-scales you and kites your slowed kegs.

How to beat Cassiopeia as Gangplank: the early game

Level 1 is yours. Cassiopeia has only Noxious Blast (Q), a slow skillshot, and no Miasma or Twin Fang yet, so she can't punish you for stepping up. Parrrley her for the gold ping and a chunk, set your first Powder Keg for waveclear, and farm while her lone poison tick does nothing. The trap is greed: don't keep trading past level 2, because the moment Miasma and the Twin Fang refund chain come online she ramps DPS faster than your low-HP barrels can answer. Keep kegs placed for waveclear and zoning, not as bait she can free-auto, and respect that her no-boots passive move speed lets her hold the spacing.

Hardest and easiest matchups for Gangplank in top lane

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

Hardest

Easiest

Read the rest of this matchup

The full Gangplank 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 Gangplank vs Cassiopeia in top lane?

Gangplank — a 55.16% win rate vs Cassiopeia in top lane over 397 games is a real advantage.

Is Gangplank vs Cassiopeia a skill matchup?

Not really — Gangplank holds a real statistical advantage (55.16% win rate), so Cassiopeia is the one working uphill.

Does Gangplank counter Cassiopeia?

Statistically yes — Gangplank counters Cassiopeia in top lane, winning 55.16% of 397 Emerald+ games.

What runes does Gangplank take vs Cassiopeia?

Gangplank takes Grasp of the Undying on the Precision tree with Triumph, Legend: Alacrity and Last Stand, and Resolve secondary (Second Wind and Bone Plating) vs Cassiopeia.

What should Gangplank build vs Cassiopeia?

Start Doran's Shield + Health Potion (vs her poke) and back for Core component + boots (≈1300g). Build Trinity Force (Sheen + barrel slow) first, then Infinity Edge, with Mercury's Treads.

Related guides

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

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