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UNIQUE - Thorns: Upon being hit by a basic attack, reflects 10 (+20% bonus Armor) magic damage to the attacker and inflicts them with 25% Grievous Wounds for 2 seconds if they are a champion. Immobilizing enemy champions also applies 40% Grievous Wounds for 2 seconds.


Additional Information
LimitationsLimited to 1 Thornmail.
Map AvailabilityALL
ItemSquareBramble Vest.png + ItemSquareGiant's Belt.png + 1000 Goldcurrency.png
Total Cost: 2700 Goldcurrency.png
Sold For: 1890 Goldcurrency.png


  • The attack speed slow of Thornmail stacks multiplicatively with
    Warden's Mail
    Randuin's Omen
    Frozen Heart
    , for a combined 27.75% attack speed slow.
  • 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, Thornmail reflects at least 16 magic damage on being hit.
  • Healing effects triggering on a basic attack (life steal, UdyrSquare.pngUdyr's Turtle Stance, Xin ZhaoSquare.pngXin Zhao's Determination, etc.) will first be reduced by Grievous Wounds.
    • This means that the Grievous Wounds, applied by Bramble Vest, will be effective with the basic attack that triggers the effect.


Thornmail Old.png

Similar Items[]

Patch History[]

Patch 9.8

Grievous Wounds duration increased.

Making Thornmail's Grievous Wounds duration consistent with the effect on other items.


Armor increased

Thanks to Bramble Vest’s efficiency, Thornmail had an amazing build path. With that build path getting weakened, we want to put more stats into Thornmail to ensure it remains a worthwhile upgrade.

ARMOR : [75] 80

Now provides health. Now applies Grievous Wounds to attackers

Against champions and teams that lean on heavy healing and regeneration effects, tanky melee types sometimes feel like they’re actually hurting their team by serving as convenient health batteries. While mages have Morellonomicon and other carries have Executioner’s Calling to help focus down healing-oriented threats, we wanted to make sure that melee champs can at least force high-sustain damage dealers to look elsewhere for their healing.

TOTAL COST : [2350] 2900 gold
BUILD PATH : [Cloth Armor + Chain Vest + 1250 gold]
Bramble Vest + Ruby Crystal + Warden’s Mail + 400 gold
ARMOR : [100] 75
UNIQUE PASSIVE - THORNS Upon being hit by a basic attack, reflects magic damage equal to 25 + 10% of your bonus Armor, inflicting Grievous Wounds on the attacker for 1 second.
UNIQUE PASSIVE - COLD STEEL When hit by basic attacks, cripples source’s attack speed by 15% for 1 second.

Now on Twisted Treeline.

Another prisoner of the “marksmen used to suck” world order, we left Thornmail off the Treeline since marksmen who clawed their way to relevance probably deserved to be there. Marksmen are now, if anything, too dominant, so it’s high time Thornmail emerged onto the Treeline.

EXISTS Thornmail now exists on Twisted Treeline!


TOTAL cost : [2300 gold] 2350 gold
BUILD path : Cloth Armor + Chain Vest + 1250 gold

Costs more. Reflects less damage back to attackers, but scales with armor.

Another major outlier in terms of effectiveness, Thornmail is at its strongest when you can comfortably stack health. While we aren’t rocking that particular boat today (armor + health is kind of always good), we’re tossing in a hook to make the item also scale with armor-stacking, but in a different way. This also creates neat synergies for champions with on-demand armor buffs (like Leona or Rammus) which is pretty OK by us.

Important to note - if for any reason you experience a decrease in armor % (say, a stray black cleaver to the face), Thornmail will ignore that when calculating its damage. Way to be, Thornmail.

TOTAL COST : [2100 gold] 2300 gold
REFLECT DAMAGE : [30% of the attack] 15% of the attack
REFLECT RATIO Now scales with 0.25 bonus armor


  • TOTAL COST : 2200 gold 2100 gold (combine cost decreased by 130 gold, inherits Chain Vest's 30 gold cost increase)


  • Cost changed from 2,000 (1,000) to 2,200 (1,180)


  • Damage return increased to 30% from 25%


  • Combine cost increased to 1,000 from 600
  • Armor increased to 100 from 70
  • Damage return increased to 25% from 20%


  • Now reflects damage calculated before armor

June 26, 2009 Patch

  • Added back into the game

May 15, 2009 Patch

  • Temporarily removed from the game

May 9, 2009 Patch REMAKE

  • On being hit, returns 20% of damage taken (20 minimum)
  • Added a new component, Cloth Armor, which increases armor from 50 to 70
  • Increased recipe cost from 320 to 500
  • Made this item unique

Alpha Week 6

  • Now returns 20 damage, increased from 18

Alpha Week 2

  • Increased return damage