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Ornn A Tier ARAM Mayhem Build

Ornn · The Fire below the Mountain

Tank 52.09% WR 7.19% PR Patch: 26.13

Damage Dealt -10%

Ornn is A tier in ARAM: Mayhem patch 26.13 with a 52.09% win rate. This guide covers their ARAM build, augment picks, and Mayhem-specific synergies.

Best Augments for Ornn

Dropkick 62.70%

Tank Engine 67.40%

Quest: Steel Your Heart 65.30%

Heavy Hitter 63.49%

Upgrade Immolate 58.01%

Augment Combos for Ornn

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2 combos

Fey Magic S Strong

With Fey Magic, R first cast triggers Vulnerability multiple times. Huge damage.

Build around Fey Magic + Ornn's first R hit. Fey Magic procs Brittle 4 times on first ult — Brittle's 18% max-HP magic damage stacks four ways for 72% max HP, then magic pen + amp items finish the kill. Forge: ability haste > magic pen. At ~500 haste, Fey Magic is ~15s CD and ult is ~16s — every fight is a nuke. Build straight magic pen + damage amp.

Ornn ARAM Mayhem Build & Augments

Mayhem-specific augment picks, synergies, and meta data for Ornn in patch 26.13.

Skill Priority

Data date: 20260701

Q>E>W Pick Rate: 36.26% Win Rate: 50.95%

Q W E Q Q R Q E Q E R E E W W Pick Rate: 12.30% Win Rate: 50.58%

E W Q Q Q R Q E Q E R E E W W Pick Rate: 1.36% Win Rate: 50.99%

Q W E Q Q R Q W Q E R E E E W Pick Rate: 1.33% Win Rate: 51.17%

Q>W>E Pick Rate: 27.41% Win Rate: 51.22%

Q W E Q Q R Q W Q W R W W E E Pick Rate: 9.40% Win Rate: 51.12%

Q W E Q Q R Q E Q W R W W W E Pick Rate: 1.20% Win Rate: 51.35%

Q W E Q Q R Q W Q W R E W W E Pick Rate: 1.06% Win Rate: 51.29%

W>Q>E Pick Rate: 12.48% Win Rate: 51.40%

Q W E W W R W Q W Q R Q Q E E Pick Rate: 3.67% Win Rate: 51.53%

Q W E Q W R W W W Q R Q Q E E Pick Rate: 0.45% Win Rate: 51.64%

Q W E W W R W Q Q W R Q Q E E Pick Rate: 0.29% Win Rate: 51.75%

Starting Items

Pick Rate: 95.17% Win Rate: 49.20%

Pick Rate: 76.91% Win Rate: 51.75%

Unending Despair

Pick Rate: 66.30% Win Rate: 51.53%

Pick Rate: 40.52% Win Rate: 50.67%

Jak'Sho, The Protean

Pick Rate: 28.07% Win Rate: 53.93%

Boots

Mercury's Treads

Pick Rate: 42.56% Win Rate: 51.58%

Boots of Swiftness

Pick Rate: 0.42% Win Rate: 54.47%

Berserker's Greaves

Pick Rate: 0.16% Win Rate: 54.80%

Plated Steelcaps

Pick Rate: 15.60% Win Rate: 49.67%

Core Builds

Unending Despair

Pick Rate: 21.46% Win Rate: 53.04%

Unending Despair

Pick Rate: 15.31% Win Rate: 52.73%

Pick Rate: 6.46% Win Rate: 48.78%

Unending Despair

Pick Rate: 3.62% Win Rate: 48.20%

Jak'Sho, The Protean

Pick Rate: 3.03% Win Rate: 49.08%

Late-Game Builds

Pick Rate: 41.06% Win Rate: 52.52%

Pick Rate: 0.79% Win Rate: 54.91%

Rejuvenation Bead

Crystalline Bracer

Pick Rate: 0.69% Win Rate: 55.92%

Rejuvenation Bead

Pick Rate: 0.70% Win Rate: 54.59%

Rejuvenation Bead

Crystalline Bracer

Pick Rate: 0.31% Win Rate: 57.52%

Best Augments for Ornn

Prismatic

Tier + appearance rate

Win rate: 62.70%

Your basic attacks and abilities execute enemy champions below 5% (+ 3% per 100 of your AD) (+ 0.2% per 1000 of your maximum health) of their maximum health, which causes their corpse to be sent flying away in a line. Upon collision with an enemy champion or terrain, the target's corpse explodes to deal 150 to 500 (+ 100% of your armor) (+ 100% of your magic resistance) magic damage to nearby enemies. Successful executions heal you for 100 to 300 (+ 2.5% of your maximum health).

The execution may also be triggered by the explosion.

Win rate: 60.87%

Grants 35% bonus health, 15% adaptive force, and 50% increased size.

Void Immolation

Win rate: 58.84%

Quest: Icathia's Fall - Immediately: Gain a Bami's Cinder and you can purchase 2 Immolate Items. Requirement: Possess Sunfire Aegis and Hollow Radiance. Reward: These Items combine into Void Immolation. Passive - Desolate: Killing an enemy deals magic damage around them.

Courage of the Colossus

Win rate: 49.39%

Immobilizing or grounding an enemy champion grants a shield for 3 seconds that absorbs 100 to 300 (+ 5% maximum health) damage (5 second cooldown per cast instance). Shields can stack between multiple triggers of this effect, though not refreshing the duration of previous shields.

Win rate: 48.87%

Damaging enemies with your ultimate ability polymorphs them into harmless critters for 2 seconds, during which their base movement speed is reduced by 60, and disarms them for the same duration (15 second cooldown per target).

Win rate: 50.64%

Immobilizing or grounding an enemy champion summons a comet above them that lands at their current location after 1 second, dealing 50 to 150 (+ 40% AP) (+ 4% of your maximum health) magic damage to enemies within the area (6 second cooldown per target per cast instance).

Gold

Tier + appearance rate

Win rate: 67.40%

Scoring a champion takedown generates a stack, stacking infinitely. For each stack, increase your maximum health and size by 5%. Lose 65% of stacks on death.

Quest: Steel Your Heart

Win rate: 65.30%

Quest: Obtain Heartsteel and accumulate over 300 bonus health from Colossal Consumption.

Reward: Upon completing your Quest, increase the bonus health gained from Heartsteel Colossal Consumption by 200%.

Win rate: 56.85%

Gain 1250 bonus health, but reduce your damage output by 10%.

Pressure Cooker

Win rate: 51.05%

Every second, apply a stacking Burn to nearby enemy champions, scaling with your max Health.

QUEST: Deal Burn damage to enemy Champions.

REWARD: Size and damage increase per Quest Level.

Win rate: 52.34%

Immobilizing or grounding an enemy champion grants you 20 bonus health, stacking infinitely (5 second cooldown per cast instance).

Win rate: 53.49%

Your chosen ability deals damage in an area around it.

Silver

Tier + appearance rate

Win rate: 63.49%

Basic attacks deal bonus physical damage equal to 3.5% of your maximum health.

Upgrade Immolate

Win rate: 58.01%

Upgrades Bami's Cinder, Hollow Radiance, and Sunfire Aegis, empowering Immolate to additionally grant you 10 gold per tick for each enemy champion afflicted by its effect. Additionally, gain 250 gold.

Clones do not count as valid targets for the effect.

Win rate: 54.27%

Immobilizing or grounding an enemy champion grants you 10 adaptive force, stacking infinitely (5 second cooldown per cast instance). Lose 50% of stacks on death.

Forged By The Master

Win rate: 54.98%

Increase your Item and Augment damage by the required number of.

Ultimate Unstoppable

Win rate: 47.97%

Casting your ultimate ability grants you crowd control immunity for 3 seconds (8 second cooldown).

Win rate: 52.66%

Grants the Ocean Dragon Soul, which has a modified base heal value of 100, or a different Dragon Soul if you aleady have it.

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Recent Stats Changes

Recent Snapshots

20260701_210447 • Patch: 26.13 • A

Rank: 37 Win: 52.09% Pick: 7.19%

Rank Δ: ↑ +1 Win Rate Δ: -0.03% Pick Rate Δ: -0.03%

20260630_030136 • Patch: 26.13 • A 🛠 Build changed: Late

Rank: 38 Win: 52.12% Pick: 7.22%

Rank Δ: 0 Win Rate Δ: -0.12% Pick Rate Δ: -0.05%

20260628_030444 • Patch: 26.13 • A

Rank: 38 Win: 52.24% Pick: 7.27%

Rank Δ: ↓ -2 Win Rate Δ: -0.14% Pick Rate Δ: -0.06%

20260627_030216 • Patch: 26.13 • A 🛠 Build changed: Late

Rank: 36 Win: 52.38% Pick: 7.33%

20260626_030129 • Patch: 26.13 • A 🛠 Build changed: Late ✨ Augment changed: Prismatic, Gold, Silver

Rank: 31 Win: 52.54% Pick: 7.34%

Prismatic +Ultimate Awakening -Spellsplit

Gold +Our Healing -Growth Spurt

Silver +Forged By The Master, Dive Bomber, Escape Plan -Mind to Matter, Swift and Safe, Siphon

20260625_030343 • Patch: 26.13 • A

Rank: 35 Win: 51.64% Pick: 6.83%

Explore more

Champions like Ornn (Tank)

Full tier list →

Other Tank picks in ARAM Mayhem ranked near Ornn on the current patch tier list.

Augments commonly built on Ornn

All augments →

Jump to the augment guides Ornn players pick most often this patch.

Void Immolation

Quest: Steel Your Heart

Related ARAM Mayhem combos

High-tier combos featured on champions similar to Ornn.

Maokai + Circle of Death

Leona + Infernal Conduit

Nautilus + Courage of the Colossus

Maokai + Courage of the Colossus

Maokai + Void Rift

Maokai + Protein Shake