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- For the
Teamfight Tactics item, see .
- For the
Wild Rift item, see .
Thornmail is a legendary item in League of Legends.
Recipe
Cost Analysis
Similar items
Notes

Item VFX
- Thorns deals
reactive damage, and thus will not trigger spell effects.
- Thorns is not blocked by
spell shield.
- Thorns' reflect is not a
projectile.
- Damage is reflected when hit by a basic attack, regardless of whether the attack deals damage. If the attacker is
blinded, or the wearer is protected by a
shield or
invulnerability, damage will still be reflected.
- By itself,
16 magic damage on being hit.
reflects at least - Healing effects triggering on a basic attack (
life steal, , , etc.) will first be reduced by
Grievous Wounds.
- This means that the
Grievous Wounds, applied by Thornmail, will be effective with the basic attack that triggers the effect.
- This means that the
Strategy
- Thornmail is a particularly effective defensive option when facing down opponents whose damage is dealt primarily through basic attacks, or against opponents that utilize on-hit
healing to survive fights (such as
life steal).
- Unlike spell effects. and , Thornmail's magic damage does not trigger
Old icons
Trivia
- Thornmail is the only purchasable item in the basic tutorial.
- Pentakill's first volume, Smite and Ignite, named its seventh track after this item.
Patch History
- Grievous Wounds duration increased to 3 seconds from 2.
- V10.23 - November 12th Hotfix
- Bug Fix: No longer loses the ability to apply
Grievous Wounds if its owner dies.
- Updated icon.
- New:
- Recipe: + +
1000 =
2700.
- Stats: 60 armor, 350 health.
- Unique Passive - Thorns: When struck by an attack, deal 10 (+ 10% bonus armor) magic damage to the attacker and inflict them with 40%
Grievous Wounds for 2 seconds if they are a champion.
Immobilizing enemy champions also applies 60% Grievous Wounds for 2 seconds.
- Limited to 1 Thornmail.
- Recipe: + +
- Old:
- Recipe: + + +
500 =
2900.
- Stats: 80 armor, 250 health.
- Unique Passive - Thorns: Upon being hit by a basic attack on-hit, reflects 25 (+ 10% bonus armor) magic damage, while also inflicting
Grievous Wounds on the attacker for 3 seconds.
- Unique Passive - Cold Steel: When hit by basic attacks,
cripples source's attack speed by 15% for 1 second.
- Recipe: + + +
Grievous Wounds duration increased to 3 seconds from 1.
- Bug Fix: Now correctly applies the cripple debuff to minions and monsters attacking its owner.
- New Recipe: + + +
400 =
2900
- Armor reduced to 75 from 100.
- New Effect: Grants 250 health.
- Removed Passive: Reflects 15% of the physical damage taken (+ 25% bonus armor) from basic attacks and on-hit effects back to its source as magic damage.
- New Passive – Thorns: Upon being hit by a basic attack, reflects magic damage equal to 25 (+ 10% bonus armor), inflicting
Grievous Wounds on the attacker for 1 second.
- New Passive – Cold Steel: When hit by basic attacks, reduced source's attack speed by 15% for 1 second.
- Added to the Twisted Treeline.
- Total cost increased to
2350 from
2100.
- Reflected damage reduced to 15% from 30%.
- New Effect: Reflected damage now deals (+25% bonus armor) bonus damage.
- The armor ratio will be affected by flat armor reductions down to 0 armor - while percent armor reductions will be ignored for the purpose of calculating bonus damage.i.e. will not reduce the reflected damage by reducing your bonus armor but a level 5 will reduce the reflected damage by 6.25(25% of 25).Negative armor values will be treated as 0. Armor penetration will not affect the ratio.
- New icon.
- Removed from the purchasable item list on Twisted Treeline.
- Damage return increased to 30% from 25%.
- Recipe cost increased to
1000 from
600.
- Armor increased to 100 from 70.
- Damage return increased to 25% from 20%.
- Now reflects damage calculated before armor.
- Added back into the game.
- Removed from the game temporarily.
- May 9, 2009 Patch Reworked
- Recipe changed: Now requires .
- Armor increased armor to 70 from 50.
- Combine cost increased to
500 from
320.
- Unique ability: On being hit, returns 20% of damage taken (20 damage minimum).
- Increased damage returned to 20 damage from 18.
- Increased return damage.
References
List of Items
- Starter items
- Pots and Consumables
- Trinkets
- Distributed items
- Boots
- Basic items
- Epic items
- Legendary items
- Mythic items
- Ornn's Mythic item upgrades
- Champion exclusive items
- Minion and Turret items
- Removed items
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