How to win lane as Sion against Trundle · 51.88% win rate (1,249 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
His bite shreds your HP — anti-heal, charged Q.
Track: Trundle's R — Subjugate (120–80s cooldown). Steals your HP/stats. Respect it.
Read from Sion's seat: which stage windows this plan plays for against Trundle.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Even / skill | Chomp is a 3.5-second auto-reset that saps your attack damage, and your shield is not up yet — charge in fog and do not auto-trade freely. |
| Level 2 | Even / skill | W-shield now absorbs his Q bite chunk; short trades start to favor you if you pop the shield on his first auto and detonate in return. |
| Level 3 | Sion | Full kit — charged Q knockup into E armor-shred deletes his resistances before his Q bites can compound; this is your first clean window. |
| Levels 4-5 | Sion | Trade around Subjugate's cooldown: when it is down push the pattern hard, when it is up give nothing and let the wave reset. |
| Level 6 | Trundle | Subjugate is live at 6 and steals a percent of your armor and MR — never all-in while it is available; wait for the cooldown window. |
| First item | Sion | Heartsteel compounding HP makes each W-shield value larger and your zombie passive harder to ignore — force fights strictly on Subjugate's cooldown. |
| Two+ items | Trundle | Subjugate takes a percent of your health, armour and MR and doubles it over 4 seconds — the bigger you build, the more it takes, so close through objectives, not 1v1 brawls. |
At Level 1 Trundle has the cleaner opener — Chomp is a 3.5-second auto-reset that saps your attack damage while your shield has not yet come online. Stay at the tip of your Q range and charge in brush so he cannot see the wind-up; do not walk into his auto range to trade freely. At Level 2 Soul Furnace changes the math: pop it right before the bite lands and the shield eats the chunk while your detonation ticks him back. Level 3 is your first real opportunity — with all three abilities up, look for a charged Q knockup into immediate E armour-shred; if it lands he is at a heavy deficit before King's Tribute heals it back off dying minions.
Pooled Emerald+ win rates from Sion's side, sampled July 2026.
The full Sion vs Trundle 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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Sion, slightly — a 51.88% win rate edge over 1,249 games; execution can flip it.
Mostly — Sion has a small statistical edge (51.88% win rate), but execution decides this lane far more than the pick does.
Not a hard counter — Sion has a slight edge (51.88% 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 Trundle.
Start Doran's Shield + Health Potion and back for Executioner's Calling (≈800g) — cuts his healing. Build Heartsteel (W + passive love HP) first, then Warmog's Armor / Thornmail, with Plated Steelcaps.
Playing the other side? Trundle vs Sion guide →
All Sion top lane matchups →
More Sion top lane matchups: vs Sylas · vs Tahm Kench · vs Teemo · vs Tryndamere · vs Urgot · vs Vayne