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Thornmail is a legendary item in League of Legends.[1]


Thornmail item
Gold 2350 (Gold 1250)
Chain Vest item
Gold 800 (Gold 500)

Cost Analysis*

Gold Value
  • 100 armor = Gold 2000
    • Total Gold Value = Gold 2000

Gold Efficiency*

  • Thornmail item.png Thornmail is 85.11% gold efficient, without its passive.
    • For the item to be considered gold efficient, the passive would need to have a gold value of at least Gold 350.

Similar items




  • Thornmail item.png Thornmail is the only purchasable item in the tutorial.
  • Currently, Thornmail offers the largest amount of armor from a single item.

Patch History

  • Total cost increased to Gold 2350 from Gold 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. The Black Cleaver item.png The Black Cleaver will not reduce the reflected damage by reducing your bonus armor but a level 5 Frenzying Taunt.png Puncturing Taunt 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.
  • Item cost decreased to Gold 2100 from Gold 2200.
  • Combine cost decreased to Gold 1050 from Gold 1180.
  • New icon.
  • Item cost increased to Gold 2200 from Gold 2000.
  • Combine cost increased to Gold 1180 from Gold 1000.
  • Removed from the purchasable item list on Twisted Treeline.
  • Damage return increased to 30% from 25%.
  • Recipe cost increased to Gold 1000 from Gold 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
  • Removed from the game temporarily.
May 9, 2009 Patch Reworked
  • Recipe changed: Now requires Cloth Armor item.png Cloth Armor.
  • Armor increased armor to 70 from 50.
  • Combine cost increased to Gold 500 from Gold 320.
  • Unique ability: On being hit, returns 20% of damage taken (20 damage minimum).
Alpha Week 6
  • Increased damage returned to 20 damage from 18.
Alpha Week 2
  • Increased return damage.


  1. Itemlist on leagueoflegends.com

List of Items