Magic resistance (or MR) is a stat that all units have, including minions, monsters, and buildings. Increasing magic resistance reduces the magic damage the unit takes. Each champion begins with some magic resistance which may increase with level. You can gain additional magic resistance from abilities, items, masteries, and runes. Magic resistance stacks additively.

All champions begin with 30 base magic resistance. No ranged champions gain magic resistance per level, but many melee champions do, with 52.5 being the maximum magic resistance possible without items, runes, masteries, or ally buffs.

Damage reduction编辑

Incoming magic damage is multiplied by a factor based on the unit's magic resistance:

Damage multiplier = 100 / (100 + MR) if MR ≥ 0
Damage multiplier = 2 − 100 / (100 − MR) if MR ≤ 0


  • 25 magic resistance → ×0.8 incoming magic damage (20% reduction).
  • 100 magic resistance → ×0.5 incoming magic damage (50% reduction).
  • −25 magic resistance → ×1.2 incoming magic damage (20% increase).

Stacking magic resistance编辑

Every point of magic resistance requires a unit to take 1% more of its maximum health in magic damage to be killed. This is called "effective health."

Example: A unit with 60 magic resistance has 60% of its maximum health in its effective health, so if the unit has 1000 maximum health, it will take 1600 magic damage to kill it.

What this means: by definition, magic resistance does not have diminishing returns, because each point increases the unit's effective health against magic damage by 1% of its current actual health value whether the unit has 10 magic resistance or 1000 magic resistance.

Note: Unlike health, increasing magic resistance also makes healing more effective because it takes more effort to remove the unit's health than it does to restore it.

Ways to increase magic resistance编辑


  • Abyssal Scepter item.png Abyssal Scepter: +57 magic resistance, +70 ability power. Unique aura: Reduces the magic resistance of nearby enemies by 20. 2650 gold.
  • Aegis of the Legion item.png Aegis of the Legion: +24 magic resistance, +270 health +18 armor. Unique aura: +12 armor, +15 magic resistance, +8 attack damage to nearby allied champions. 1925 gold.
  • Athene's Unholy Grail item.png Athene's Unholy Grail: +40 magic resistance, +90 ability power, +15 mana regeneration. Unique passive: +15% cooldown reduction. Unique passive: Restores 12% of maximum mana on kill or assist. Unique passive: Increases your mana regeneration by 1% per 1% mana you're missing. 2950 gold.
  • Banshee's Veil item.png Banshee's Veil: +50 magic resistance, +375 health +375 mana. Unique passive: Blocks one negative spell every 45 seconds. 2715 gold.
  • Chalice of Harmony item.png Chalice of Harmony: +30 magic resistance, +7.5 mana regeneration. Unique passive: Increases your mana regeneration by 1% per 1% mana you're missing. 890 gold.
  • Item.png Force of Nature: +76 magic resistance, +40 health regeneration, +8% movement speed. Unique passive: Restores 0.35% of your champion's health every second. 2610 gold.
  • Guardian Angel item.png Guardian Angel: +38 magic resistance, +68 armor. Unique passive: Revives your champion upon death, restoring 750 health and 375 mana. This effect can only occur once every 5 minutes. 2600 gold.
  • Item.png Hexdrinker: +30 magic resistance, +25 attack damage Unique passive: If you would take magic damage which would leave you at less than 30% of your maximum health, you first gain a shield which absorbs 250 magic damage for 5 seconds. 60 second cooldown. 1400 gold.
  • Lich Bane item.png Lich Bane: +30 magic resistance, +350 mana +80 ability power +7% movement speed. Unique passive: 100% chance when an ability is used that your next physical attack deals an additional 100% of your ability power in damage. This effect has a 2 second cooldown. 3470 gold.
  • Maw of Malmortius item.png Maw of Malmortius: +36 magic resistance, +55 attack damage, Unique Passive: +1 Attack Damage for every 2.5% health missing, Unique Passive: If you would take magic damage which would leave you at less than 30% of your maximum health, you gain a shield which absorbs 400 magic damage for 5 seconds. 60 second cooldown 3300 gold.
  • Mercury's Treads item.png Mercury's Treads: +25 magic resistance, +35 tenacity. Unique passive: Enhanced Movement 2. 1200 gold.
  • Negatron Cloak item.png Negatron Cloak: +48 magic resistance. 740 gold.
  • Null-Magic Mantle item.png Null-Magic Mantle: +24 magic resistance. 400 gold.
  • Item.png Odyn's Veil: +50 magic resistance, +350 health, +350 mana. Unique passive: Reduces and stores 10% of magic damage dealt to your champion. Unique Active: Deals 200 + (Stored magic damage)[Max: 400] to nearby enemy units. 90 second cooldown. 2715 gold.
  • Quicksilver Sash item.png Quicksilver Sash: +48 magic resistance. Unique active: Removes all debuffs from your champion. 90 second cooldown. 1440 gold.
  • Spirit Visage item.png Spirit Visage: +30 magic resistance, +250 health. Unique passive: Reduces ability cooldowns by 10% and increases healing and regeneration on yourself by 15%. 1550 gold.
  • Wit's End item.png Wit's End: +30 magic resistance, +40% attack speed. Unique passive: Physical attacks deal 42 bonus magic damage and increase your magic resistance by 5 for 5 seconds. (stacks up to 4 times). 2150 gold.

Champion abilities编辑



Ways to reduce magic resistance编辑

See magic penetration. Note that magic penetration and magic resistance reduction are different.

List of champions' magic resistance编辑


  • If a summoner leaves the game, their champion gains 1000 armor and magic resistance. This may be to prevent champions like Karthus Karthus or Draven Draven from gaining free kills.
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