How to win lane as Kassadin against Locke · Matchup data reviewed on patch 26.15
AD assassins skip your shield — the hardest version of your weak era; survive on geometry, then out-scale the profession.
Track: Locke's Q — Ritual Nails (10–6s cooldown). The nail marks are his whole engine — without 2-3 stacks on you his blink-in barely dents; sidestep the recasts and punish the ten seconds of nothing.
Read from Kassadin's seat: which stage windows this plan plays for against Locke.
| Stage | Favoured | Why |
|---|---|---|
| Level 1 | Even / skill | Ritual Nails marks you from 950 and Ashen Pursuit closes on the mark, so one Null Sphere shield does not cover his level 1 trade |
| Level 2 | Even / skill | His setup tools still outpace your early trading power — the shield covers one spell, and his marks are cashed with autos |
| Level 3 | Even / skill | Fights are now close and decided by who lands their key ability first |
| Levels 4-5 | Even / skill | Grey-health steroid all-ins are dangerous but dodgeable with good tracking |
| Level 6 | Even / skill | Purgatory execute threat demands caution but doesn't guarantee a kill if you play safe |
| First item | Even / skill | First item and Null Sphere's shield even out trades against his missing-health scaling |
| Two+ items | Kassadin | Mobility and burst from two items outscale his execute-reliant damage pattern |
Levels 1-2 favor Locke since his mark-and-dash kit lets him punish careless positioning while your Null Sphere shield covers one spell a trade. Avoid getting tagged by Ritual Nails, since that mark sets up his follow-up dash damage. Trades are winnable if you dodge his mark and punish his E cooldown, but default to safe farming. Missing-HP execute makes low-hp trades extra risky.
Pooled Emerald+ win rates from Kassadin's side, sampled July 2026.
The full Kassadin vs Locke 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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No sample yet — Kassadin vs Locke has no Emerald+ win-rate data for this patch; 6 of the 7 windows are a coin flip and Kassadin edges the rest 1–0, so treat it as a skill matchup and play the plan below.
Mostly — 6 of the 7 windows are a coin flip and Kassadin edges the rest 1–0, so execution decides far more than the pick does.
Kassadin takes Fleet Footwork on the Precision tree with Presence of Mind, Legend: Haste and Last Stand, and Sorcery secondary (Manaflow Band and Transcendence) vs Locke.
Start Doran's Shield + Health Potion and back for Oblivion Orb (≈800g) — cuts his sustain. Build Rod of Ages first, then Seraph's Embrace, with Mercury's Treads.
Playing the other side? Locke vs Kassadin guide →
All Kassadin mid lane matchups →
More Kassadin mid lane matchups: vs Katarina · vs LeBlanc · vs Lissandra · vs Lux · vs Malzahar · vs Mel
Also played in: Top Lane