How to win lane as Sion against Gnar · 50.98% win rate (2,136 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
His %HP hurts — charged Q mini, respect Mega CC.
Track: Gnar's R — GNAR! (90–30s cooldown). His Mega all-in. Dodge/Q-stun it.
Read from Sion's seat: which stage windows this plan plays for against Gnar.
This is Sion's own plan; across 2,136 pooled games the lane is leaning Sion.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Even / skill | Level 1 Sion charged-Q damage is real but mini-Gnar can simply walk out of the telegraph — trade only if you catch him standing still at the boomerang's return path. |
| Level 2 | Gnar | Boomerang Throw hits going out and coming back — 16s at rank 1 unless he catches it, and he wins Level 2 anyway because W cannot shield both halves. |
| Level 3 | Gnar | At level 3 he can combo boomerang into hop (E) into follow-up auto, filling his Rage bar fast; his transform all-in outpowers your W-shield before it stacks up. |
| Levels 4-5 | Even / skill | Both of you wait: he fills Rage, you want Hop gone — it is down 22s at rank 1, and that gap is the only time your charged Q is not simply jumped. |
| Level 6 | Even / skill | Your R is online but his Mega-Gnar GNAR! AOE stun is equally live; all-ins are mutual kill threats and whoever mis-times the transform window loses the fight. |
| First item | Gnar | First item Gnar still has percent-HP boomerang slamming into a now-larger HP pool — the ratio doesn't flip yet, and his hop keeps him out of your charged-Q range. |
| Two+ items | Sion | At two tank items your HP passive and zombie threat tilt the ratio: his boomerang damage doesn't scale fast enough to kill you before you land a charged Q knockup and brawl him down. |
Level 1 is a coin flip — if you can get an early charged Q on him before he learns your telegraph it hurts, but mini-Gnar's boomerang (Q) returns through you on the way back, dealing percent-max-HP physical damage twice per throw. At level 2 he gets his hop (E) and can jump your charge entirely. Level 3 is his strongest window: boomerang poke plus the ability to build Rage quickly on short trades, setting up a transform all-in. Your W-shield is online but his percent-HP damage punches through it harder than a flat-damage opponent would — absorb one hit with W, then look to retaliate on the boomerang's cooldown rather than eating the return.
Pooled Emerald+ win rates from Sion's side, sampled July 2026.
The full Sion vs Gnar 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.
Sion, slightly — a 50.98% win rate edge over 2,136 games; execution can flip it.
Mostly — Sion has a small statistical edge (50.98% win rate), but execution decides this lane far more than the pick does.
Not a hard counter — Sion has a slight edge (50.98% win rate), and play quality decides the rest.
Sion takes Grasp of the Undying on the Resolve tree with Demolish, Second Wind and Overgrowth, and Precision secondary (Triumph and Legend: Haste) vs Gnar.
Start Doran's Shield + Health Potion and back for Core component + boots (≈1300g). Build Heartsteel (W + passive love HP) first, then Warmog's Armor / Thornmail, with Plated Steelcaps.
Playing the other side? Gnar vs Sion guide →
All Sion top lane matchups →
More Sion top lane matchups: vs Galio · vs Gangplank · vs Garen · vs Gragas · vs Graves · vs Gwen