How to win lane as Gwen against Sion · 50.14% win rate (2,948 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
Your %-HP Snip shreds his HP — dodge his charged Q.
Track: Sion's Q — Decimating Smash (10–6s cooldown). Charged = knockup. Sidestep it.
Read from Gwen's seat: which stage windows this plan plays for against Sion.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Even / skill | You are both weak level-1s — he has only a slow charged Q knockup and you have a clunky cone Q, so just deny his last-hits and dodge the windup. |
| Level 2 | Gwen | Your level-2 tool plus passive %-max-HP on-hit damage starts chipping his big bar faster than his E poke chips yours. |
| Level 3 | Gwen | Q+E lets you snip his max HP with the true-damage center, then E-reset out before his long-range E poke returns. |
| Levels 4-5 | Even / skill | Roar of the Slayer shreds armour, not MR, so his 800-range chip is physical — farm through it and wait for 6 rather than forcing. |
| Level 6 | Gwen | Needlework and Hallowed Mist flip the lane: mist his charged Q so the knockup whiffs while you keep snipping his HP down. |
| First item | Gwen | Riftmaker or Nashor's makes your %-HP magic and true snip melt the armor and HP he builds — your hardest tank-shredding window. |
| Two+ items | Gwen | He out-scales nothing about your 1v1 — every tank item feeds your %-max-HP Q; only respect his teamfight knockup, not the duel. |
Sion can only really hurt you with a fully charged Decimating Smash (Q), so never stand still in melee while he winds it up — sidestep the slow charge and a tap-cast is harmless. Roar of the Slayer (E) pokes from 800 and shreds your armour, not your MR, so it cannot out-damage what A Thousand Cuts restores once you trade back in melee. At level 1 you are both soft, so just farm; by level 3 your Q+E snips a chunk of his big bar and resets out before his E returns.
Pooled Emerald+ win rates from Gwen's side, sampled July 2026.
The full Gwen 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.
Read the full guide — plans from $1.99/month →🔒 Secure checkout · 💰 7-day money-back guarantee on your first payment · ✋ Cancel anytime
Lane Pass $1.99/mo · All Lanes $3.99/mo · Annual $24.99/yr. Renews automatically — cancel anytime.
Nobody on paper — a 50.14% win rate over 2,948 games makes this a coin flip decided by play, not champion select.
Yes — Gwen vs Sion is a genuine skill matchup: 50.14% win rate, and the favour swings window to window rather than being set at champion select.
No hard counter either way — the Gwen vs Sion win rate is 50.14%, an even lane decided by execution.
Gwen takes Conqueror on the Precision tree with Triumph, Legend: Alacrity and Last Stand, and Resolve secondary (Bone Plating and Unflinching) vs Sion.
Start Doran's Shield + Health Potion and back for Executioner's Calling (≈800g) — cuts his healing. Build Riftmaker (omnivamp + true-damage ramp) first, then Nashor's Tooth, with Plated Steelcaps.
Playing the other side? Sion vs Gwen guide →
All Gwen top lane matchups →
More Gwen top lane matchups: vs Sett · vs Shen · vs Singed · vs Swain · vs Sylas · vs Tahm Kench