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Augment Details Silver T3 Patch 26.9
Upgrade Thornmail

Upgrade Thornmail ARAM Mayhem Augment Guide

Upgrades Bramble Vest and Thornmail , empowering Thorns to generate a protective shell around you. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 – 250 (based on level) (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage . Shell regenerates after 20 – 5 (based on level) seconds of being out-of-combat with enemy champions.

56.85%Win Rate
0.26%Pick Rate
T3Tier
52,455Games

Performance by Stage

Performance by stage

Stage stats
StageWin RatePick RateGamesPatch
Stage1T356.85%0.16%8,96826.9
Stage2T256.63%0.37%21,46426.9
Stage3T255.65%0.40%22,72026.9
Stage4T548.14%0.01%29526.9

Best Champions

Best champions with this augment

Top synergy

Upgrade Thornmail Hextech Combos

Must-have augment combinations extracted from the guide

Combos
Upgrade Thornmail Upgrade Thornmail Upgrade Thornmail Silver
Rarity
Silver
Tier
T3
Win Rate
56.85%
Pick Rate
0.26%
Games
52,455

Upgrades Bramble Vest and Thornmail , empowering Thorns to generate a protective shell around you. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 – 250 (based on level) (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage . Shell regenerates after 20 – 5 (based on level) seconds of being out-of-combat with enemy champions.

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Goliath Goliath Goliath Prismatic
Rarity
Prismatic
Tier
T1
Win Rate
56.13%
Pick Rate
0.80%
Games
161,849

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

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Upgrade Thornmail + Goliath

Goliath grants 35% bonus health, directly amplifying Upgrade Thornmail's shell damage which scales with 12% maximum health. The increased size also makes you a larger target, ensuring enemies hit your protective shell more frequently in ARAM's narrow lane. This combination transforms you into a durable frontline threat that punishes attackers with massive retaliatory damage.

Upgrade Thornmail Upgrade Thornmail Upgrade Thornmail Silver
Rarity
Silver
Tier
T3
Win Rate
56.85%
Pick Rate
0.26%
Games
52,455

Upgrades Bramble Vest and Thornmail , empowering Thorns to generate a protective shell around you. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 – 250 (based on level) (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage . Shell regenerates after 20 – 5 (based on level) seconds of being out-of-combat with enemy champions.

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Gash Gash Gash Prismatic
Rarity
Prismatic
Tier
T4
Win Rate
50.93%
Pick Rate
0.23%
Games
46,896

Basic attacks on-hit deal ( 20 – 40 / 10 – 20) (based on level) (+ ( 25% / 20%) bonus armor) bonus true damage . Additionally, gain 50% bonus attack speed .

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Upgrade Thornmail + Gash

Gash grants 50% bonus attack speed and causes basic attacks to deal bonus true damage scaling with 25% bonus armor. Since Upgrade Thornmail encourages building armor and MR for its shell damage, Gash converts those defensive stats into offensive power. The attack speed helps trigger Thornmail's passive more frequently while you punish attackers with both reflected and true damage.

Upgrade Thornmail Upgrade Thornmail Upgrade Thornmail Silver
Rarity
Silver
Tier
T3
Win Rate
56.85%
Pick Rate
0.26%
Games
52,455

Upgrades Bramble Vest and Thornmail , empowering Thorns to generate a protective shell around you. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 – 250 (based on level) (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage . Shell regenerates after 20 – 5 (based on level) seconds of being out-of-combat with enemy champions.

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Celestial Body Celestial Body Celestial Body Gold
Rarity
Gold
Tier
T1
Win Rate
55.07%
Pick Rate
0.85%
Games
173,099

Gain 1500 bonus health , but reduce your damage output by 10%.

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Upgrade Thornmail + Celestial Body

Celestial Body grants 1500 bonus health, massively increasing Upgrade Thornmail's shell damage which scales with 12% maximum health. The 10% damage reduction is negligible compared to the survivability and damage output gained. In ARAM's constant teamfights, this combination creates an incredibly tanky frontline that deals significant magic damage whenever enemies attack you.

Upgrade Thornmail Upgrade Thornmail Upgrade Thornmail Silver
Rarity
Silver
Tier
T3
Win Rate
56.85%
Pick Rate
0.26%
Games
52,455

Upgrades Bramble Vest and Thornmail , empowering Thorns to generate a protective shell around you. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 – 250 (based on level) (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage . Shell regenerates after 20 – 5 (based on level) seconds of being out-of-combat with enemy champions.

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Tank Engine Tank Engine Tank Engine Gold
Rarity
Gold
Tier
T1
Win Rate
59.25%
Pick Rate
1.27%
Games
257,215

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.

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Upgrade Thornmail + Tank Engine

Tank Engine grants 5% increased maximum health per takedown, stacking infinitely. This scaling health directly amplifies Upgrade Thornmail's shell damage which scales with 12% maximum health. As teamfights progress in ARAM, you become progressively tankier and more threatening, with each takedown making your protective shell increasingly devastating to attackers.

What Not to Pair with Upgrade Thornmail

Bad augment synergies and low-value pairings to avoid

Avoid
Upgrade Thornmail Upgrade Thornmail Upgrade Thornmail Silver
Rarity
Silver
Tier
T3
Win Rate
56.85%
Pick Rate
0.26%
Games
52,455

Upgrades Bramble Vest and Thornmail , empowering Thorns to generate a protective shell around you. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 – 250 (based on level) (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage . Shell regenerates after 20 – 5 (based on level) seconds of being out-of-combat with enemy champions.

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Scopiest Weapons Scopiest Weapons Scopiest Weapons Prismatic
Rarity
Prismatic
Tier
T2
Win Rate
55.15%
Pick Rate
0.66%
Games
134,093

Gain ( 250 / 150) bonus attack range.

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Avoid Upgrade Thornmail + Scopiest Weapons

Upgrade Thornmail requires enemies to use basic attacks on-hit against you to trigger its empowered Thorns shell damage. Scopiest Weapons grants massive bonus attack range, positioning you far from enemies. This playstyle conflict means the shell rarely gets broken, wasting the core mechanic and defensive purpose of the augment entirely.

Upgrade Thornmail Upgrade Thornmail Upgrade Thornmail Silver
Rarity
Silver
Tier
T3
Win Rate
56.85%
Pick Rate
0.26%
Games
52,455

Upgrades Bramble Vest and Thornmail , empowering Thorns to generate a protective shell around you. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 – 250 (based on level) (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage . Shell regenerates after 20 – 5 (based on level) seconds of being out-of-combat with enemy champions.

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Glass Cannon Glass Cannon Glass Cannon Prismatic
Rarity
Prismatic
Tier
T5
Win Rate
46.87%
Pick Rate
0.26%
Games
52,593

You gain a health threshold equal to 70% maximum health which cannot be modified nor exceeded by any means. In return, you deal bonus true damage equal to 15% of all of the damage you deal pre-mitigation.

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Avoid Upgrade Thornmail + Glass Cannon

Glass Cannon caps your health threshold at 70% maximum health, severely limiting survivability. Upgrade Thornmail's shell damage scales with 12% maximum health, making the reduced health pool directly reduce the augment's offensive output. The defensive anti-synergy undermines both the protective shell concept and the health-based damage scaling.

Upgrade Thornmail Upgrade Thornmail Upgrade Thornmail Silver
Rarity
Silver
Tier
T3
Win Rate
56.85%
Pick Rate
0.26%
Games
52,455

Upgrades Bramble Vest and Thornmail , empowering Thorns to generate a protective shell around you. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 – 250 (based on level) (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage . Shell regenerates after 20 – 5 (based on level) seconds of being out-of-combat with enemy champions.

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ADAPt ADAPt ADAPt Silver
Rarity
Silver
Tier
T1
Win Rate
55.58%
Pick Rate
0.82%
Games
167,258

Convert all of your bonus attack damage into ability power at a rate of 1 ability power per 0. 6 bonus attack damage . Additionally, increase your ability power by 15% .

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Avoid Upgrade Thornmail + ADAPt

Upgrade Thornmail's shell damage scales with 30% armor and 30% magic resistance, encouraging tanky defensive builds. ADAPt converts all bonus attack damage into ability power, removing physical damage scaling and pushing toward a mage build path. This stat conversion conflicts with the resistances-focused scaling that makes the augment effective.

Upgrade Thornmail Upgrade Thornmail Upgrade Thornmail Silver
Rarity
Silver
Tier
T3
Win Rate
56.85%
Pick Rate
0.26%
Games
52,455

Upgrades Bramble Vest and Thornmail , empowering Thorns to generate a protective shell around you. The shell is broken by the next enemy champion to use a basic attack on-hit against you, which causes them to take 50 – 250 (based on level) (+ 30% armor) (+ 30% magic resistance) (+ 12% maximum health) magic damage . Shell regenerates after 20 – 5 (based on level) seconds of being out-of-combat with enemy champions.

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Vampirism Vampirism Vampirism Gold
Rarity
Gold
Tier
T1
Win Rate
62.00%
Pick Rate
1.58%
Games
320,958

You can no longer be healed by allies and your health regeneration is set to 0 . Gain 25% omnivamp .

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Avoid Upgrade Thornmail + Vampirism

Vampirism sets your health regeneration to 0 and prevents ally healing, forcing reliance on omnivamp for sustain. Upgrade Thornmail is designed for frontliners who absorb damage and punish attackers. The inability to benefit from regeneration or ally healing reduces your effective tanking capability, conflicting with the augment's intended role.

Augment Explained

Upgrade Thornmail

Augments

Upgrade: Thornmail: Upgrade your Thornmail to Super Thornmail, reflecting more damage and slowing attackers. A tank's countermeasure tool.

Mechanics Breakdown

Upgrade Thornmail

Augments

Upgrade: Thornmail: Core effect: Upgrade existing Thornmail to Super Thornmail. Stat increase: Armor from 60 to 80,反弹 damage from 25% to 40%. Additional effect: When taking basic attacks, slow attacker by 30% for 1.5 seconds. Cooldown reduction: Refund cooldown from 1 second to 0.5 seconds. Restriction: Requires Thornmail item to activate.

Trigger Conditions

Upgrade Thornmail

Augments

Upgrade: Thornmail: Triggered immediately when selecting this rune (if you have Thornmail) When taking enemy champion basic attacks Reflects damage and applies slow

What Does Not Trigger

Upgrade Thornmail

Augments

Upgrade: Thornmail: Without Thornmail item, When taking ability damage, When taking true damage

Hidden Mechanics

Upgrade Thornmail

Augments

Upgrade: Thornmail: Reflected damage is magical damage, benefits from magic penetration. Slow effect additively stacks with other slows. Can trigger reflection and slow on summoner attacks. Even if you sell Thornmail, upgrade effect remains (but cannot be used)

Best Champion Types

Upgrade Thornmail

Augments

Upgrade: Thornmail: Pure tank champions (Alistar, Leona, Ornn) Juggernaut champions (Darius, Mordekaiser, Garen) Initiators

Low-Value Champion Types

Upgrade Thornmail

Augments

Upgrade: Thornmail: Pure damage dealers (ADC, mages) Assassins (Zed, Talon, Akali) Pure supports (Soraka, Karma, Nami)

Playstyle Tips

Upgrade Thornmail

Augments

Upgrade: Thornmail: Build Thornmail first, then take this upgrade rune. Rush into the enemy ADC in teamfights to trigger反弹 and slow. Combine with tank items to maximize survivability. Use the slow effect to restrict enemy positioning.

Best Augment Combos

Upgrade Thornmail

Augments

Upgrade Thornmail + Goliath: Goliath grants 35% bonus health, directly amplifying Upgrade Thornmail's shell damage which scales with 12% maximum health. The increased size also makes you a larger target, ensuring enemies hit your protective shell more frequently in ARAM's narrow lane. This combination transforms you into a durable frontline threat that punishes attackers with massive retaliatory damage. Upgrade Thornmail + Gash: Gash grants 50% bonus attack speed and causes basic attacks to deal bonus true damage scaling with 25% bonus armor. Since Upgrade Thornmail encourages building armor and MR for its shell damage, Gash converts those defensive stats into offensive power. The attack speed helps trigger Thornmail's passive more frequently while you punish attackers with both reflected and true damage. Upgrade Thornmail + Celestial Body: Celestial Body grants 1500 bonus health, massively increasing Upgrade Thornmail's shell damage which scales with 12% maximum health. The 10% damage reduction is negligible compared to the survivability and damage output gained. In ARAM's constant teamfights, this combination creates an incredibly tanky frontline that deals significant magic damage whenever enemies attack you. Upgrade Thornmail + Tank Engine: Tank Engine grants 5% increased maximum health per takedown, stacking infinitely. This scaling health directly amplifies Upgrade Thornmail's shell damage which scales with 12% maximum health. As teamfights progress in ARAM, you become progressively tankier and more threatening, with each takedown making your protective shell increasingly devastating to attackers.

Bad Augment Synergies

Upgrade Thornmail

Augments

Avoid Upgrade Thornmail + Scopiest Weapons: Upgrade Thornmail requires enemies to use basic attacks on-hit against you to trigger its empowered Thorns shell damage. Scopiest Weapons grants massive bonus attack range, positioning you far from enemies. This playstyle conflict means the shell rarely gets broken, wasting the core mechanic and defensive purpose of the augment entirely. Avoid Upgrade Thornmail + Glass Cannon: Glass Cannon caps your health threshold at 70% maximum health, severely limiting survivability. Upgrade Thornmail's shell damage scales with 12% maximum health, making the reduced health pool directly reduce the augment's offensive output. The defensive anti-synergy undermines both the protective shell concept and the health-based damage scaling. Avoid Upgrade Thornmail + ADAPt: Upgrade Thornmail's shell damage scales with 30% armor and 30% magic resistance, encouraging tanky defensive builds. ADAPt converts all bonus attack damage into ability power, removing physical damage scaling and pushing toward a mage build path. This stat conversion conflicts with the resistances-focused scaling that makes the augment effective. Avoid Upgrade Thornmail + Vampirism: Vampirism sets your health regeneration to 0 and prevents ally healing, forcing reliance on omnivamp for sustain. Upgrade Thornmail is designed for frontliners who absorb damage and punish attackers. The inability to benefit from regeneration or ally healing reduces your effective tanking capability, conflicting with the augment's intended role.

Common Mistakes

Upgrade Thornmail

Augments

Upgrade: Thornmail: Don't take this rune without Thornmail item Don't think spell damage can trigger反弹 Don't ignore the slow effect's restriction Note enemy magic damage,反弹 only applies to magic damage