How to win lane as Cassiopeia against Olaf · 49.12% win rate over 114 Emerald+ games · Updated 2026-07-27
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Olaf | Olaf owns level 1: Undertow slows you and Reckless Swing's true damage ignores your nonexistent resistances while you have one ability and no poison ramping. |
| Level 2 | Even / skill | Closer at 2 — you can prime-and-Twin-Fang for a real trade, but his axe slow and true-damage poke still match it, so it is a skill trade. |
| Level 3 | Cassiopeia | You own 3: a full Q-prime into Twin Fang plus your boots-free kiting lets you out-DPS his sustain in any extended trade you control. |
| Levels 4-5 | Even / skill | Even through 4-5 — your Twin Fang chain wins a kited poke war, but one landed Undertow lets his Reckless Swing burst you back, so it stays a skill check. |
| Level 6 | Even / skill | Skill at 6 — your R catches most champs, but Ragnarok makes Olaf CC-immune, so your stun whiffs and his lifesteal answers your poke. |
| First item | Even / skill | Your first-item poke spike pulls him off the wave while Undertow is down, but his bruiser items and R lifesteal keep it even when he lands axes. |
| Two+ items | Even / skill | Late stays a coinflip: you out-shred him if you kite the axe, but you have no resistances and his true-damage CC-immune dive can delete you first. |
Olaf's first two levels are scary here: his Undertow axe slows you even through your level-scaled move speed, and Reckless Swing chunks you with true damage your zero resistances do nothing about — all while you have one ability and no poison ramping. Do not facecheck his axe range early; last-hit at max distance and step sideways to dodge Undertow, since a missed axe leaves him slowed with no slow landed on you. Your turn comes at 3: with Q and E ranked you prime with Noxious Blast and chain Twin Fang, and because you buy no boots your innate move speed lets you kite the axe in a poke war his early sustain cannot fully heal.
The full Cassiopeia vs Olaf 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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Playing the other side? Olaf vs Cassiopeia guide →
All Cassiopeia top lane matchups →