How to win lane as Cassiopeia against Gragas · 42.39% win rate (184 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
Miasma is the anti-dash button — ground his engage and the dive kit becomes a farm bot.
Track: Gragas's E — Body Slam (14–12s cooldown). His engage and his escape in one button — punish the cooldown hard.
Read from Cassiopeia's seat: which stage windows this plan plays for against Gragas.
This is Cassiopeia's own plan; across 184 pooled games the lane is Gragas-favoured.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Even / skill | At level 1 you have one ability and no poison to stack, and Happy Hour heals him off every cast — neither side wins, so just last-hit. |
| Level 2 | Cassiopeia | With both Q and E you prime with Noxious Blast and chain a refunded Twin Fang his pool sustain cannot fully heal. |
| Level 3 | Cassiopeia | Your full Q-into-E poison combo plus Serpentine Grace kiting comes online — you out-DPS his W damage-reduction brawl. |
| Levels 4-5 | Even / skill | Ranks in Q and E let you chain Twin Fangs and ground his escape with Miasma, winning every extended trade. |
| Level 6 | Cassiopeia | Petrifying Gaze stuns him as he lands his Body Slam dive — your R answers his all-in and converts the won trade into a kill. |
| First item | Even / skill | Malignance or early Liandry's plus Serpentine Grace move speed make you a dominant lane DPS who kites his Body Slam and Barrel cooldowns. |
| Two+ items | Cassiopeia | He scales into a durable Explosive Cask displacement teamfighter while you stay squishy and short-ranged — the lane levels back out. |
Level 1 is even — you have a single ability and no poison stacking, and Happy Hour heals him off every skill he casts, so just last-hit with the tip of Noxious Blast. Once you hit 2 and especially 3 you take over: prime with Q, then chain Twin Fang (E) on the poisoned target — each E refunds cooldown and mana while the poison ticks, so you out-DPS him before Drunken Rage matters. His one-second drink is the tell, not the slam: when he starts sampling, step back, because the empowered auto is a reset. Bait Body Slam (E, 14s) and Miasma the follow-up — grounding denies his NEXT dash, not one mid-flight.
Pooled Emerald+ win rates from Cassiopeia's side, sampled July 2026.
The full Cassiopeia vs Gragas 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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Gragas — Cassiopeia wins only 42.39% of 184 games, so Cassiopeia plays this as the disadvantaged side.
Not really — Gragas holds a real statistical advantage (57.61% win rate), so Cassiopeia is the one working uphill.
No — Gragas counters Cassiopeia (Cassiopeia wins only 42.39% of games). Play it as the disadvantaged side and lean on the windows in the plan.
Cassiopeia takes Conqueror on the Precision tree with Presence of Mind, Legend: Haste and Last Stand, and Sorcery secondary (Manaflow Band and Transcendence) vs Gragas.
Start Doran's Ring + 2 Health Potions and back for Oblivion Orb (≈800g) — cuts his healing. Build Seraph's Embrace / Liandry's Torment first, then Rylai's Crystal Scepter, with No boots — bank the gold into MR via Rookern later.
Playing the other side? Gragas vs Cassiopeia guide →
All Cassiopeia top lane matchups →
More Cassiopeia top lane matchups: vs Gangplank · vs Garen · vs Gnar · vs Graves · vs Gwen · vs Heimerdinger