How to win lane as Cassiopeia against Heimerdinger · 38.1% win rate (105 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
He pokes in bursts, you poke forever — survive the early chip and the treadmill out-grinds him.
Track: Heimerdinger's E — CH-2 Electron Storm Grenade (11s cooldown). The stun makes his turret nest lethal — dodge it before diving.
Read from Cassiopeia's seat: which stage windows this plan plays for against Heimerdinger.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Heimerdinger | His H-28 G turret and Hextech Micro-Rockets reach 1325 to my 850, so he chips me off the wave before any poison is stacked. |
| Level 2 | Even / skill | Once I have Q and E I can poison-and-Twin-Fang, but his rocket poke and turret chip still match my damage at this range — it stays even. |
| Level 3 | Even / skill | My Q-cloud into Twin Fang and the Q move-speed buff let me weave through turret fire, but his nest and stun grenade keep it a genuine skill fight. |
| Levels 4-5 | Cassiopeia | Ranks in Q and E let me chain Twin Fangs on a poisoned Heimer while my W slow-and-ground holds him for the trade — I win the extended fight if I dodge the grenade. |
| Level 6 | Cassiopeia | Petrifying Gaze stuns him for a full Twin-Fang chain when he's facing me, turning a primed Q poke into a kill if I bait his E first. |
| First item | Even / skill | My Liandry's plus passive MS-to-AP shreds him, but his turret wall blunts my short-range all-in — I have to clear or path around the nest, keeping it even. |
| Two+ items | Heimerdinger | He out-scales into a siege and pick threat: an R-empowered E grenade bursts boots-less, resist-less me before Twin Fang ramps, so the lane tilts back to him. |
Levels 1-2 are his — the H-28 G turret plus Hextech Micro-Rockets reach 1325 against my 850 Noxious Blast, and I have no poison stacked to trade back. I farm with the tip of Q and eat a little chip rather than walking into the nest. The lane swings the moment I have Q and E together at 3: I throw Q across both him and his turrets, then Twin Fang whatever is poisoned, and the Q move-speed buff carries me out of rocket range. Dodge the CH-2 Electron Storm Grenade — only a direct hit stuns, so clipping its edge costs me a slow and nothing more.
Pooled Emerald+ win rates from Cassiopeia's side, sampled July 2026.
The full Cassiopeia vs Heimerdinger 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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Heimerdinger — Cassiopeia wins only 38.1% of 105 games, so Cassiopeia plays this as the disadvantaged side.
Not really — Heimerdinger holds a real statistical advantage (61.9% win rate), so Cassiopeia is the one working uphill.
No — Heimerdinger counters Cassiopeia (Cassiopeia wins only 38.1% 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 Heimerdinger.
Start Doran's Ring + 2 Health Potions and back for Tear of the Goddess + Dark Seal (≈800g). 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? Heimerdinger vs Cassiopeia guide →
All Cassiopeia top lane matchups →
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