How to win lane as Sivir against Karthus · 52.92% win rate (1,612 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15
A spell war against a spell shield — his rotation has a keystone and your E owns it.
Track: Karthus's R — Requiem (200–160s cooldown). The global execute — recall above the red line and track it from his level 6 on.
Read from Sivir's seat: which stage windows this plan plays for against Karthus.
This is Sivir's own plan; across 1,612 pooled games the lane is leaning Sivir.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Sivir | Level 1 your Q poke beats a pre-rank Karthus with weak early damage. |
| Level 2 | Sivir | At 2 you keep chunking him before his Lay Waste comes online. |
| Level 3 | Sivir | Level 3 you still out-trade him while his Q spam isn't ranked yet. |
| Levels 4-5 | Karthus | At 4-5 ranked Lay Waste spam and Defile flip the poke war to him. |
| Level 6 | Karthus | His level 6 global Requiem and aura make committing to him dangerous. |
| First item | Karthus | With his first AP item his Q burst and Defile out-trade you in lane. |
| Two+ items | Sivir | Late, your cleave and R team-speed outclass his immobility and swing it back to you. |
You win the first three levels: before his Q ranks up, Karthus is a low-range farmer and your Q poke and W cleave push him off the wave and chunk him on any step-up. He is a low-range farmer before his ranks arrive, so Ricochet the wave and push him off it entirely. Boomerang through the minions for free chip. Keep Spell Shield for his wall rather than his Q, because a slow that lands while you are pushed is what makes this lane dangerous at all.
Pooled Emerald+ win rates from Sivir's side, sampled July 2026.
The full Sivir vs Karthus 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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Sivir, slightly — a 52.92% win rate edge over 1,612 games; execution can flip it.
Mostly — Sivir has a small statistical edge (52.92% win rate), but execution decides this lane far more than the pick does.
Not a hard counter — Sivir has a slight edge (52.92% win rate), and play quality decides the rest.
Sivir takes Fleet Footwork on the Precision tree with Presence of Mind, Legend: Bloodline and Cut Down, and Inspiration secondary (Biscuit Delivery and Cosmic Insight) vs Karthus.
Start Doran's Blade + Health Potion and back for Noonquiver (≈1000g). Build Essence Reaver / Statikk first, then IE / Runaan's, with Mercury's Treads / Berserker's.
Playing the other side? Karthus vs Sivir guide →
All Sivir bot lane matchups →
More Sivir bot lane matchups: vs Jinx · vs Kai'Sa · vs Kalista · vs Kog'Maw · vs Lucian · vs Miss Fortune