Kassadin vs Sion — Top Lane Matchup Guide

How to win lane as Kassadin against Sion · 55.81% win rate over 43 Emerald+ games · Updated 2026-07-27

Verdict: Kassadin is favoured — Kassadin owns 5 of the 7 game windows to Sion's 1. Kassadin wins 55.81% of games vs Sion in top lane (43 Emerald+ games analysed).

Favour timeline — who owns each window

StageFavouredWhy
Level 1SionAt level 1 Sion's charged Q into W detonation is real burst, and you have only Null Sphere's shield and no blink to answer it — concede this window to him.
Level 2Even / skillHe out-shoves with the E shred-line and threatens a full-charge Q while you still lack the trade tools to punish, so it's a coinflip you simply play safe around.
Level 3KassadinYour maxed Q shield now soaks his E poke and you farm under tower while his charged Q stays a contained threat — the lane tips your way as neither can commit but you scale.
Levels 4-5KassadinRiftwalk lets you blink over the Q charge and out of his E shred-line, removing his one catch tool and giving you the kill threat instead.
Level 6KassadinYour Catalyst into Rod of Ages erases the W-detonation fear, and Force Pulse off your own casts punishes every burned Q.
First itemKassadinWith items you free-farm behind the Q shield while he can no longer shove you off the wave, and you out-roam his immobile body.
Two+ itemsKassadinRiftwalk stacks plus Nashor's/Rabadon's let you blink-kite his slow, immobile frame forever — a charged Q can never catch you again.

Early game (levels 1–5)

Sion's whole early kill threat is the fully-charged Q knockup — if you stand in it at full charge it stuns you, his W detonation lands on a locked target, and pre-6 you have only Null Sphere's shield to answer with no blink to escape. Don't contest the wave: last-hit at max Q range and side-step the obvious charge by walking perpendicular to it. Use Nether Blade on a creep to refund your mana so you never get forced off lane, and just deny him the one full-charge Q he needs to commit. His E is an armor/MR-shred poke line, not a shield-break — it shreds your resists and shoves, it doesn't pop your Q shield.

Read the rest of this matchup

The full Kassadin vs Sion 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? Sion vs Kassadin guide →
All Kassadin top lane matchups →