Ornn ARAM Mayhem Build

The Fire below the Mountain. A below-average pick in ARAM Mayhem on patch 26.21: #141 of 173 champions.

CPatch 26.21TankNo runes in Mayhem

Tier: C
Win rate: 46.8%
Pick rate: 4.6%
Rank: #141 of 173
Games: 1,060,043
Patch: 26.21

How to play Ornn in ARAM Mayhem

Ornn is a below-average pick in ARAM Mayhem on patch 26.21: tier C, #141 of 173 champions, with a 46.8% win rate over 1,060,043 games.

Ornn's damage is mixed (38% physical, 56% magic), which makes it awkward for the enemy team to itemize against. It soaks 85,091 damage per game and mitigates another 108,135, so it belongs at the front: start fights and absorb the poke your carries can't.

The Tank build, tank items, is both the most played and the top-ranked path: Heartsteel, Warmog's Armor and Unending Despair, with a 49.3% win rate over 738,980 games. On this build 59% of players skip boots and spend the slot on another item.

The cards that do best on Ornn are Forged By The Master, Steel Your Heart and Pressure Cooker. Cards built around health and resistances fill most of the top of its list, followed by ability haste. Skip Nightstalking and Purist - Caster when you can: they do worst on Ornn. A pair to look for: Giant Slayer with Escape Plan.

Take Flash and Mark (95% of players). Max Q (Volcanic Rupture) first, then W, then E.

Ornn ARAM Mayhem build

ARAMKit groups every Ornn game by build path. The top-ranked path comes first, with the items most players start with, buy first and add later.

Tank build · top ranked

49.3% win rate · 82% of Ornn games · 738,980 games

Start

Giant's Belt
Ruby Crystal

Core items, in buying order

Heartsteel
Warmog's Armor
Unending Despair

Boots on the Tank build for Ornn, top ranked first, with the share of players who buy them
Boots, best first	Players
Mercury's Treads	30%
Plated Steelcaps	10%
No boots	59%

Situational, after the core

Overlord's Bloodmail9% buy it
Sunfire Aegis5% buy it
Jak'Sho, The Protean29% buy it
Hollow Radiance15% buy it
Spirit Visage14% buy it
Kaenic Rookern16% buy it

Other build paths

Other Ornn build paths with share of games, win rate and core items
Path	Core items	Games	Win rate
APMalignance, Imperial Mandate, Shadowflame		3.3%	43.4%

Games: the share of all Ornn games that went this way.

Most bought items

Heartsteel86% of games
Warmog's Armor72% of games
Unending Despair55% of games
Thornmail41% of games
Jak'Sho, The Protean33% of games
Mercury's Treads30% of games
Randuin's Omen20% of games
Kaenic Rookern19% of games
Hollow Radiance15% of games
Plated Steelcaps12% of games

Best augments for Ornn

Every card with enough Ornn games, by tier and best first within each tier. Tiers are Ornn's own: a card can be S tier here and C tier on another champion. As Riot's policy asks, cards are shown by tier and order only, never with a win rate. Click a card for its own page; the augment tier list ranks them over all champions.

PrismaticBest prismatic cards

1Omni SoulTier S
2Hand of BaronTier S
3Giant SlayerTier S

GoldBest gold cards

SilverBest silver cards

S- and A-tier cards for Ornn

11 S tier and 23 A tier, best first.

The S- and A-tier augments for Ornn in ARAM Mayhem, best first, with their rarity and what they do
Augment	Rarity	Tier	What it does
Forged By The Master	Silver	Tier S	Your Item and Augment damage are increased by 45%.
Steel Your Heart	Gold	Tier S	QUEST: Possess Heartsteel with 300 stacks. REWARD: Multiply Heartsteel stacks by 3.
Pressure Cooker	Gold	Tier S	Every second, apply an infinitely stacking Burn to nearby enemy champions, dealing (0.5% Max Health) magic damage per second for 2 seconds…
Omni Soul	Prismatic	Tier S	Gain 3 random Dragon Souls.
Hand of Baron	Prismatic	Tier S	Gain 25% Adaptive Force. Nearby allied minions are greatly empowered.
Sap Magic	Gold	Tier S	Every 20 seconds, your next Attack deals (80–300 (by level) +5% Bonus Health) bonus physical damage and restores (50–250 (by level) +8% Max…
Growth Spurt	Gold	Tier S	Gain Growth Spurt as a Summoner Spell. Growth Spurt suddenly increases your size, Knocking Up nearby enemies for 1 second and granting…
Escape Plan	Silver	Tier S	Gain a massive (65% Max Health) decaying Shield, decaying 150% Movement Speed, and a decaying shrink effect upon reaching 35% Health (75…
Giant Slayer	Prismatic	Tier S	Become tiny, gain 20% Movement Speed, and deal between 10% and 30% bonus damage to champions based on how much larger they are than you.
Mad Scientist	Prismatic	Tier S	On each Revive, you grow large (gaining 30% Adaptive Force and 20% Health) or tiny (gaining 70 Ability Haste and 40% Movement Speed).
Armored Impact	Gold	Tier S	After casting an Ability, your next Attack deals (50–125 (by level) +250% Bonus Armor) bonus physical damage to nearby enemies.
Upgrade Immolate	Silver	Tier A	Hollow Radiance and Sunfire Aegis grant 12 Gold per target affected with Immolate. Gain 250 Gold.
Fruitify	Silver	Tier A	Scoring a Takedown causes the slain champion to explode into 3–6 (by level) Fruit. Fruit restores 6% of your maximum health and restores 6%…
Tank Engine	Gold	Tier A	On takedown, gain a stack that grants 5% increased size and 5% max Health. Lose 65% of stacks on death.
Heavy Hitter	Silver	Tier A	Your Attacks deal additional (3.5% Max Health) physical damage.
Goliath	Prismatic	Tier A	Become large, gaining 35% Health and 15% Adaptive Force.
Leg Day	Silver	Tier A	Gain 50 Movement Speed and 50% Slow Resist.
Kill Secured	Silver	Tier A	Gain 60% Movement Speed towards enemies below 40% health.
Shadow Runner	Silver	Tier A	After using a Dash, Blink, or Teleport Ability or exiting Stealth, gain 300 Movement Speed for 2 seconds.
Stats on Stats on Stats!	Prismatic	Tier A	Gain 4 Stat Anvils, with a higher chance of Gold and Prismatic Anvils! On your next Augment selection, gain one additional reroll per slot.
Infinite Recursion	Prismatic	Tier A	Gain 60 Ability Haste, plus 3 Ability Haste per takedown.
Erosion	Silver	Tier A	Damaging enemies shreds 1.5% Armor and Magic Resist for 4s, up to 30% at 20 stacks.
Ocean Soul	Silver	Tier A	Gain the Ocean Soul, granting high Health and Mana Regen after damaging enemies.
Stats on Stats!	Gold	Tier A	Gain 3 Stat Anvils, with a higher chance of Gold and Prismatic Anvils!
Shark Bait	Gold	Tier A	On death, become Shark Bait. You can take no actions other than moving, which slows nearby enemies by 40%. After a few seconds, a Shark…
Dawnbringer's Resolve	Gold	Tier A	When dropping below 50% Health, heal for 30% max Health over 3 seconds. Resets on death or every 45 seconds.
Final Form	Prismatic	Tier A	After casting your Ultimate, gain a 50% max Health Shield, 20% Omnivamp and 30% bonus Movement Speed for 10 seconds. (20 seconds Cooldown).
Lonely Warrior	Silver	Tier A	Gain 15% Attack Speed, 10 Armor, and 10 Magic Resist for each nearby enemy champion within 600 Range.
Apex Inventor	Gold	Tier A	Gain 100 Item Haste (equivalent to 50% Item CDR). Item Haste reduces the cooldown Cooldown of all Item Abilities.
Weapon of Destiny	Gold	Tier A	Your first Legendary Item becomes the Weapon of Destiny. When a champion you damaged within the last 3 seconds dies, increase the Weapon of…
Fey Magic	Prismatic	Tier A	Damaging with your Ultimate Polymorphs enemies for 2 seconds (15 second Cooldown).
Porcupine	Gold	Tier A	Taking damage from champions builds up a burst of needles. At critical mass, the needles burst, dealing (75–200 (by level) +125% Bonus…
Flashy	Gold	Tier A	Your Flash has 3 charges. After 120 seconds, regain all charges.
Biggest Snowball Ever	Prismatic	Tier A	Gain 100 Ability Haste on Snowball. Your snowball is BIG and will pass through minions. It Slows enemies for 20% for 2 seconds, Knocks Up…

Average on Ornn
44 cards, best first

Below average on Ornn
24 cards, best first

Weakest on Ornn
8 cards, best first

Best first augment for Ornn

Your first card decides the early fights, and a card that is great as a first pick can be a weak fourth. ARAMKit ranks Ornn's cards for each pick on its own; these are the top five per pick, with their tier in that pick. For the first pick, Upgrade Immolate, Armored Impact and Pressure Cooker come out on top.

The best augments for Ornn in each pick of an ARAM Mayhem game, best first, with their tier in that pick
#	First pick	Second pick	Third pick	Fourth pick
1	Upgrade ImmolateTier S	Growth SpurtTier S	Hand of BaronTier S	Forged By The MasterTier S
2	Armored ImpactTier S	Steel Your HeartTier S	Forged By The MasterTier S	Giant SlayerTier S
3	Pressure CookerTier S	Sap MagicTier A	Heavy HitterTier S	Sap MagicTier S
4	Omni SoulTier S	Pressure CookerTier A	FruitifyTier S	FruitifyTier A
5	Growth SpurtTier S	Omni SoulTier A	Escape PlanTier S	Omni SoulTier A

Strong card pairs

Two cards that do especially well together on Ornn, best pair first.

Summoner spells and skill order

Summoner spells

Flash + Mark95% of players · 46.9% win rate
Flash + Ghost4% of players · 45.7% win rate
Ghost + Mark0% of players · 45.8% win rate

Skill order

QVolcanic Rupture
WBellows Breath
ESearing Charge

Max Q first. 48% of players use this order (48.3% win rate); put points in R whenever you can.

Ornn in an average Mayhem game

Averages per game over every game on this patch.

K / D / A: 6.9 / 10.7 / 28.5
KDA: 3.75
Damage to champions: 34,846
Damage taken: 85,091
Self-mitigated: 108,135
Healing on allies: 6
Shielding on allies: 1
Crowd control: 49 s
Kill participation: 64%
Game length: 17:15

Damage type

Physical 38%Magic 56%True 6%

Questions and answers

What is the best Ornn build in ARAM Mayhem?

On patch 26.21 ARAMKit ranks the Tank build first for Ornn: Heartsteel, Warmog's Armor and Unending Despair. It is also the most played build.

What are the best augments for Ornn in ARAM Mayhem?

The S-tier cards for Ornn, best first: Forged By The Master, Steel Your Heart, Pressure Cooker, Omni Soul and Hand of Baron. The full list by tier is on this page.

Is Ornn good in ARAM Mayhem?

Ornn is tier C on patch 26.21, #141 of 173 champions, with a 46.8% win rate over 1.1 million games. That makes it a below-average pick in ARAM Mayhem right now.

What is the best first augment for Ornn in ARAM Mayhem?

For Ornn's first pick on patch 26.21: Upgrade Immolate, Armored Impact, Pressure Cooker, Omni Soul and Growth Spurt, best first. Cards rank differently in later picks; the table on this page has all four.

Other Tanks in ARAM Mayhem

Get Ornn's build and card tiers in your game

LazyElo is a free Windows app that sits next to the League client. In the Mayhem lobby it shows which champion on your bench is strongest; in the game you type the three cards you're offered and see their tier for Ornn side by side, with this build in the overlay.

Download LazyElo for Windows

Free plan, no ads. For Windows 10 and 11.

Plans and pricing The ARAM Mayhem overlay

ARAM Mayhem tier list
Every champion by tier on patch 26.21.
ARAM Mayhem augment tier list
Every card from S to D over all champions.
All Mayhem builds
Pick a champion from the full list.
ARAM Mayhem rules
Augment levels, rerolls and why there are no runes.
ARAM Mayhem guide
How the mode, the cards and the picks work.
Ornn counters
Its lane matchups on Summoner's Rift.
ARAM Mayhem overlay
The card picker and build in the app.

Source: ARAMKit, used with permission. Patch 26.21, 23,177,263 ARAM Mayhem games, data of October 28, 2026. Riot keeps Mayhem games out of its public match API, so these aggregates come from ARAMKit. Card tiers are shown without win rates, as Riot's developer policy asks.