Zac vs Kassadin — Top Lane Matchup Guide

How to win lane as Zac against Kassadin · 47.52% win rate (141 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15

Verdict: Kassadin is slightly favoured — Zac wins 47.52% of 141 games. Play it patient and win your windows.

At a glance

Bully him early — slingshot him on the Riftwalk cooldown and out-sustain on blobs.

Track: Kassadin's R — Riftwalk (5–2s cooldown). His mobility spike at 6. Kill him before it scales.

Do

  • E from fog when Riftwalk is down
  • Pick up every blob
  • Q-stretch the double-hit

Don't

  • E into his peel
  • Let him stomp blobs
  • Fight with passive down

Runes & build vs Kassadin

Start
Doran's Shield + Health Potion
First back
Core component + boots (≈1300g)
First item
Heartsteel (HP feeds everything)
Then
Spirit Visage / Thornmail
Boots
Mercury's Treads
Runes
Grasp of the Undying (Resolve): Demolish, Second Wind, Overgrowth · Precision: Triumph, Legend: Haste · Shards: Health Scaling, Adaptive Force, Magic Resist

Favour timeline — the windows in Zac's game plan

Read from Zac's seat: which stage windows this plan plays for against Kassadin.

This is Zac's own plan; across 141 pooled games the lane is leaning Kassadin.

StageFavouredWhy
Level 1ZacKassadin has no pre-6 trading tools, so Zac's E all-in dominates level 1.
Level 2ZacAt 2 your knock-up plus W works, but Void Stone cuts the magic part.
Level 3ZacLevel 3 you control trades, but his Q shield absorbs magic.
Levels 4-5ZacAt 4 keep denying CS — mana, not cooldown, gates Riftwalk.
Level 6ZacAt 6 Riftwalk is 5s at rank 1 — you punish his mana, not its cooldown.
First itemZacFirst item is his — the AP spike lands and your kill window shuts.
Two+ itemsZacLate he outscales you; your R lockdown is the only answer in fights.

How to beat Kassadin as Zac: the early game

Levels 1-2 are yours: Kassadin has no waveclear or trading tools pre-6. Void Stone blunts your magic damage, so commit fully rather than chipping — deny CS and kill.

Hardest and easiest matchups for Zac in top lane

Pooled Emerald+ win rates from Zac's side, sampled July 2026.

Hardest

Easiest

Read the rest of this matchup

The full Zac vs Kassadin 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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Common questions

Who wins Zac vs Kassadin in top lane?

Kassadin, slightly — Zac wins 47.52% of 141 games; winnable with the right plan.

Is Zac vs Kassadin a skill matchup?

Mostly — Kassadin has a small statistical edge (52.48% win rate), but execution decides this lane far more than the pick does.

Does Zac counter Kassadin?

No — if anything Kassadin has the slight edge (Zac wins 47.52%), though it stays close.

What runes does Zac take vs Kassadin?

Zac takes Grasp of the Undying on the Resolve tree with Demolish, Second Wind and Overgrowth, and Precision secondary (Triumph and Legend: Haste) vs Kassadin.

What should Zac build vs Kassadin?

Start Doran's Shield + Health Potion and back for Core component + boots (≈1300g). Build Heartsteel (HP feeds everything) first, then Spirit Visage / Thornmail, with Mercury's Treads.

Related guides

Playing the other side? Kassadin vs Zac guide →
All Zac top lane matchups →

More Zac top lane matchups: vs Jayce · vs K'Sante · vs Karma · vs Kayle · vs Kennen · vs Kled