How to win lane as Cassiopeia against Vayne · 58.22% win rate over 146 Emerald+ games · Updated 2026-07-27
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Even / skill | Level 1 is a genuine coin-flip — with one ability and no poison primed yet, your Twin Fang has nothing to refund off, so it comes down to who respects range and last-hits cleaner. |
| Level 2 | Cassiopeia | Q into E comes online — prime her with Noxious Blast then Twin Fang the poisoned target for the refund; the poison ticks even through her tumble, a trade her single dash can't fully answer. |
| Level 3 | Cassiopeia | Your full Q-to-E combo plus Q's champion-hit move speed lets you chain damage and stick to her faster than her tumble kite can reset the distance. |
| Levels 4-5 | Cassiopeia | Ranks in Q and E let you chain Twin Fangs off your poison and win any extended trade before she lands three autos for a Silver Bolts proc, and W Miasma grounds her escape. |
| Level 6 | Cassiopeia | Petrifying Gaze turns a won poke trade into a kill — the facing-stun ignores her tumble invis, so you can catch her stepping up to CS and Twin Fang her down. |
| First item | Cassiopeia | Malignance or early Liandry's plus your boots-free Serpentine Grace move speed outpaces her tumble kite — your dominant snowball window before she spikes. |
| Two+ items | Vayne | At 2+ items her Silver Bolts third-hit percent-max-HP true damage shreds your resistance-light AP build and her tumble invis resets every trade — she out-scales you hard. |
Level 1 is a true coin-flip — neither of you wants to commit with one ability, but she can chip you with autos at her range while your Q poison and E refund aren't online yet, so last-hit safe and don't walk into auto range for free. The lane swings the second you hit level 2-3 with Q into E: throw Noxious Blast on her or the wave, then Twin Fang the poisoned target for the cooldown-and-mana refund — a trade her single tumble cannot fully dodge because the poison ticks even if she sidesteps the Twin Fang. Do not chase her into invis after a tumble; you waste your E with nothing primed. Instead bait the tumble out, step up while it's down, and re-prime with Q.
The full Cassiopeia vs Vayne 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? Vayne vs Cassiopeia guide →
All Cassiopeia top lane matchups →