Ornn vs Mordekaiser — Top Lane Matchup Guide

How to win lane as Ornn against Mordekaiser · 50.63% win rate (2,637 Emerald+ games, lolalytics, sampled July 2026) · Matchup data reviewed on patch 26.15

Verdict: Statistically even (50.63% win rate) — but the tempo isn't: Mordekaiser pressures 4 of the 7 stage windows in the plan below. Whoever converts their windows wins.

At a glance

Build MR — W-brittle him, survive his realm.

Track: Mordekaiser's R — Realm of Death (140–100s cooldown). His 1v1 realm. Brittle him in it.

Do

  • Build MR
  • W-brittle + tank his combo
  • E-knock him up

Don't

  • Get isolated low in his R
  • Stand in his E
  • Fight low in the realm

Runes & build vs Mordekaiser

Start
Doran's Shield + Health Potion
First back
Executioner's Calling (≈800g) — cuts his healing
First item
Iceborn Gauntlet (forge-upgradeable)
Then
Sunfire Aegis
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 Ornn's game plan

Read from Ornn's seat: which stage windows this plan plays for against Mordekaiser.

StageFavouredWhy
Level 1Even / skillYou're both weak level-1s, but you have no shield or combo yet — just last-hit and don't get pulled by his E into an isolated Q.
Level 2MordekaiserHis Q does bonus isolated damage and you still have no W to answer — he wins any short trade at 2.
Level 3MordekaiserObliterate hits harder on an isolated target and Indestructible heals it back — he edges the level-3 window.
Levels 4-5Even / skillYour W percent-HP poke and first E-Q knock-up let you trade back evenly once you have two combo points.
Level 6MordekaiserHis R (Realm of Death) drags you 1v1 and steals your stats — your CC means nothing solo, so he owns 6.
First itemMordekaiserHis Riftmaker/Rylai spike lets him stick and out-sustain through your W shield before your tank items land.
Two+ itemsOrnnYour 13 Masterwork upgrades and double-tank durability make you the anchor while his single-target R nets only one kill.

How to beat Mordekaiser as Ornn: the early game

Levels 1-2 are rough — you have no shield, no combo, and you're mana-starved, so don't contest his E-pull into an isolated Q slam, just hold range and farm. The moment you hit 3 and have W (Bellows Breath), you can finally answer: its unstoppable percent-HP exhale and shield let you poke back and shrug his Q burst. Don't get yanked by his E into the wall — that's the whole isolation combo that bursts you before W is up.

Hardest and easiest matchups for Ornn in top lane

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

Hardest

Easiest

Read the rest of this matchup

The full Ornn vs Mordekaiser 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 Ornn vs Mordekaiser in top lane?

Nobody on paper — a 50.63% win rate over 2,637 games makes this a coin flip decided by play, not champion select.

Is Ornn vs Mordekaiser a skill matchup?

Yes — Ornn vs Mordekaiser is a genuine skill matchup: 50.63% win rate, and the favour swings window to window rather than being set at champion select.

Does Ornn counter Mordekaiser?

No hard counter either way — the Ornn vs Mordekaiser win rate is 50.63%, an even lane decided by execution.

What runes does Ornn take vs Mordekaiser?

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

What should Ornn build vs Mordekaiser?

Start Doran's Shield + Health Potion and back for Executioner's Calling (≈800g) — cuts his healing. Build Iceborn Gauntlet (forge-upgradeable) first, then Sunfire Aegis, with Mercury's Treads.

Related guides

Playing the other side? Mordekaiser vs Ornn guide →
All Ornn top lane matchups →

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