英雄联盟维基
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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[]

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

Examples:

  • 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[]

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[]

Items[]

  • Abyssal Scepter 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 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 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 Banshee's Veil: +50 magic resistance, +375 health +375 mana. Unique passive: Blocks one negative spell every 45 seconds. 2715 gold.
  • Chalice of Harmony 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.
  • Force of Nature 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 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.
  • Hexdrinker 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 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 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 Mercury's Treads: +25 magic resistance, +35 tenacity. Unique passive: Enhanced Movement 2. 1200 gold.
  • Negatron Cloak Negatron Cloak: +48 magic resistance. 740 gold.
  • Null-Magic Mantle Null-Magic Mantle: +24 magic resistance. 400 gold.
  • Odyn's Veil 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 Quicksilver Sash: +48 magic resistance. Unique active: Removes all debuffs from your champion. 90 second cooldown. 1440 gold.
  • Spirit Visage 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 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[]

  • Akali's Akali's Twilight Shroud Twilight Shroud lays down a cover of smoke for 8 seconds where she gains 10 / 20 / 30 / 40 / 50 magic resistance while inside.
  • Annie's Annie's Molten Shield Molten Shield increases her magic resistance by 20 / 30 / 40 / 50 / 60 for 8 seconds.
  • Elise's Elise's Spider Form Spider Form increases her magic resistance by 10 / 15 / 20 / 25.
  • Galio's Galio's Bulwark Bulwark increases an allied champion's magic resistance by 30 / 45 / 60 / 75 / 90 for 4 seconds.
  • Garen's Garen's Courage Courage increases his magic resistance by 20%.
  • Graves' Graves' True Grit True Grit increases his magic resistance by Error: Parameter '3' is not accepted. every second he remains in combat. This bonus stacks up to 10 times. Graves is considered in combat if he has dealt or received damage in the last 3 seconds.
  • Jax's Jax's Grandmaster's Might Grandmaster's Might increases his magic resistance by 25 / 35 / 45 (+20% AP) for 8 seconds.
  • Kennen's Kennen's Lightning Rush Lightning Rush increases his magic resistance by 10 / 20 / 30 / 40 / 50 for 4 seconds.
  • Jayce's Jayce's Transform: Mercury Hammer Transform: Mercury Hammer increases his magic resistance by 5 / 15 / 25 / 35.
  • Leona's Leona's Eclipse Eclipse increases her magic resistance by 30 / 40 / 50 / 60 / 70 for 3 seconds. The duration of the buff is doubled if any enemies are damaged by the ability.
  • Master Yi's Master Yi's Meditate Meditate increases his magic resistance by 100 / 150 / 200 / 250 / 300 for up to 5 seconds.
  • Mordekaiser's Mordekaiser's Creeping Death Creeping Death increases an allied unit's magic resistance by 10 / 15 / 20 / 25 / 30 for 6 seconds.
  • Nidalee's Nidalee's Aspect of the Cougar Aspect of the Cougar grants her 10 / 20 / 30 magic resistance while in cougar form.
  • Olaf's Olaf's Ragnarok Ragnarok increases his magic resistance by 30 / 45 / 60 for 6 seconds.
  • Orianna's Orianna's Command: Protect Command: Protect increases an allied champion's magic resistance by 10 / 15 / 20 / 25 / 30 as long as the ball is attached to it.
  • Rammus' Rammus' Defensive Ball Curl Defensive Ball Curl increases his magic resistance by 40 / 60 / 80 / 100 / 120 for 6 seconds.
  • Rengar's Rengar's Battle Roar Battle Roar Rengar lets out a battle roar, damaging enemies increases his magic resist by 15 / 22 / 29 / 36 / 43 for 3 seconds.
  • Shyvana's Shyvana's Dragon's Descent Dragon's Descent passively increases her magic resistance by 10 / 15 / 20. This bonus is doubled while she is in dragon form.
  • Singed's Singed's Insanity Potion Insanity Potion increases his magic resistance by 35 / 50 / 65 for 25 seconds.
  • Sona's Sona's Aria of Perseverance Aria of Perseverance:
    • Aura: increases nearby allied champions' magic resistance by 3 / 6 / 9 / 12 / 15 while active and persists for two seconds after deactivation.
    • Activation: increases hers and one nearby allied champion's magic resistance by an extra 8 / 11 / 14 / 17 / 20 for 3 seconds.
  • Soraka's Soraka's Consecration Consecration increases nearby allied champions' magic resistance by 16.
  • Trundle's Trundle's Agony Agony increases his magic resistance by 15% / 20% / 25% of the target enemy's magic resistance, and doubles the amount over the next 6 seconds.
  • Urgot's Urgot's Hyper-Kinetic Position Reverser Hyper-Kinetic Position Reverser increases his magic resistance by 60 / 90 / 120 for 5 seconds.
  • Wukong's Wukong's Stone Skin Stone Skin grants him Error: Parameter '3' is not accepted. magic resistance for each nearby enemy champion.
  • Xin Zhao's Xin Zhao's Crescent Sweep Crescent Sweep increases his magic resistance by 15 / 20 / 25 for each enemy champion hit for 8 seconds.

Masteries[]

  • Resistance Resistance increases your champion's magic resistance by 2 / 4 / 6.

Runes[]

Ways to reduce magic resistance[]

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

List of champions' magic resistance[]

Trivia[]

  • 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.