League of Legends Wiki

Magic resistance

Comments172
1,824pages on
this wiki

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. Currently no ranged champion gains magic resistance per level, but most melee champions do except KassadinSquare.png Kassadin, MaokaiSquare.png Maokai, PoppySquare.png Poppy, ShenSquare.png Shen, SingedSquare.png Singed, and YasuoSquare.png Yasuo.

EliseSquare.png Elise, JayceSquare.png Jayce, KayleSquare.png Kayle and NidaleeSquare.png Nidalee do not gain magic resistance per level because they are not always melee champions due to their variable attack range.

All champions that do gain magic resistance per level gain 1.25 magic resistance per level, reaching 52.5 base magic resistance at level 18.

Damage reduction

Magic Resistance reduces the damage of incoming magical attacks by a percentage. This percentage is determined by the formula: Damage Reduction = Total Magic Resistance / (100 + Total Magic Resistance). For example, a champion with 150 points of magic resistance would receive 60% reduced damage from magical attacks. Incoming magic damage is multiplied by a factor based on the unit's magic resistance(same with armor):

$${\rm Damage\ multiplier}=\begin{cases} {100 \over 100+{\it MR}}, & {\rm if\ }{\it MR} \geq 0\\ 2 - {100 \over 100 - {\it MR}}, & {\rm otherwise} \end{cases}$$

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 160% 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.

For a more detailed explanation, see this video.

Unlike health, increasing magic resistance makes healings and shields more effective because it requires more effort from your enemies to remove the bonus health granted. This is called indirect scaling.

Magic Resistance as Scaling

These use the champion's magic resistance to increase the magnitude of the ability. It could involve total or bonus magic resistance. By building magic resistance items, you can receive more benefit and power from these abilities.

Champions

  • BraumSquare.png Braum's Stand Behind Me.png Stand Behind Me grants armor equal to 10 / 11.5 / 13 / 14.5 / 16% of his bonus armor to himself and the target ally (in addition to a base amount) for 3 seconds.
  • GarenSquare.png Garen's Courage.png Courage grants bonus magic resistance to himself equal to 20% of his bonus magic resistance.
  • GalioSquare.png Galio's Runic Skin.png Runic Skin grants him bonus ability power equal to 50% of his total magic resistance.
  • LeonaSquare.png Leona's Eclipse.png Eclipse grants additional magic resist plus 20% of her bonus magic resist for its duration.
  • TrundleSquare.png Trundle's Subjugate.png Subjugate takes 40% of the target's magic resistance and gains an equal amount of magic resistance. Half of this magic resistance is stolen on cast, and the next half is taken over 4 seconds. The magic resistance bonus/reduction lasts for another 4 seconds after the drain completes.

Items

  • Randuin's Omen item.png Randuin's Omen active increases its slow duration by a base amount plus 0.5% of the wearer's total magic resistance.

Increasing magic resistance

Items

  • Abyssal Scepter item.png Abyssal Scepter: +45 magic resistance, +70 ability power. Unique Aura: Reduces the magic resistance of nearby enemies by 20. 2560 gold.
  • Aegis of the Legion item.png Aegis of the Legion: +20 magic resistance. Unique Aura - Legion: Nearby allies gain 20 magic resist and 10 health regeneration. +200 health. 1900 gold.
  • Athene's Unholy Grail item.png Athene's Unholy Grail: +25 magic resistance, +60 ability power, +10 mana regeneration, +20% cooldown reduction. Unique Passive: Restores 15% of maximum mana on kill or assist. Unique Passive - Mana Font: Increases your mana regen by 1% per 1% mana you're missing. 2600 gold.
  • Chalice of Harmony item.png Chalice of Harmony: +25 magic resistance, +7 mana regeneration. Unique Passive: Increases your mana regeneration by 1% per 1% mana you're missing. 880 gold.
  • Hexdrinker item.png Hexdrinker: +25 magic resistance, +25 attack damage. Unique Passive - Lifeline: If you would take magic damage which would leave you at less than 30% health, you first gain a shield that absorbs 250 magic damage for 5 seconds. 60 second cooldown. 1350 gold.
  • Locket of the Iron Solari item.png Locket of the Iron Solari: 20 magic resistance. Unique Aura - Legion: Nearby allies gain 20 magic resist and 10 health regen per 5 seconds. +300 health, +20 Armor, +10% cooldown reduction. Unique Active: Shield yourself and nearby allies for 5 seconds, absorbing up to 50 (+10 per level) damage. 60 second cooldown. 2800 gold.
  • Maw of Malmortius item.png Maw of Malmortius: +40 magic resistance, +60 attack damage. Unique Passive: +1 Attack Damage for every 2.5% health missing. Unique Passive - Lifeline: If you would take magic damage which would leave you at less than 30% health, you first gain a shield that absorbs 400 magic damage for 5 seconds. 60 second cooldown. 3200 gold.
  • Mercury's Treads item.png Mercury's Treads: +25 magic resistance. Unique Passive - Enhanced Movement: +45 movement speed. Unique Passive - Tenacity: The duration of stuns, slows, taunts, fears, silences, blinds and immobilizes are reduced by 35%. 1200 gold.
  • Mikael's Crucible item.png Mikael's Crucible: +40 magic resistance, +20 mana regeneration, 10% Cooldown Reduction. Unique Passive - Mana Font: Increases your mana regeneration by 1% per each percentage of mana you are missing, Unique Active: Removes all stuns, roots, taunts, fears, silences and slows on an ally champion and heals for 150 + 10% of the target's maximum health. (180 second cooldown) 2450 gold.
  • Negatron Cloak item.png Negatron Cloak: +40 magic resistance. 720 gold.
  • Null-Magic Mantle item.png Null-Magic Mantle: +20 magic resistance. 400 gold.
  • Quicksilver Sash item.png Quicksilver Sash: +45 magic resistance. Unique Active: Removes all debuffs from your champion. 90 second cooldown. 1550 gold.
  • Spectre's Cowl.png Spectre's Cowl: +45 magic resistance, +200 health. Unique Passive: Gain 15 health regeneration after taking damage from champions, up to 10 seconds. 1400 gold.
  • Spirit Visage item.png Spirit Visage: +55 magic resistance, +400 health, 20 health regeneration, +10% cooldown reduction. Unique Passive: Increases healing and regeneration on yourself by 20%. 2750 gold.
  • Wit's End item.png Wit's End: +25 magic resistance. Unique Passive: Your basic attacks steal 5 magic resistance of the target for 5 seconds. Stacks up to 5 times. +50% attack speed. Unique Passive: Your basic attacks deal 42 bonus magic damage. 2400 gold.

Variable Availability

  • STH Banshee's Veil item.png Banshee's Veil: +55 magic resistance, +450 health. Unique Passive: Gain 45 health regeneration when taking damage from enemy champions or when the spell shield blocks the next incoming enemy ability. This shield refreshes if you haven't taken damage from champions in 25 seconds. 2750 gold.
  • TC Dervish Blade item.png Dervish Blade: +45 magic resist, +50% attack speed, +10% cooldown reduction. Unique Active - Quicksilver: Removes all debuffs from your champion. Melee champions also gain +50% movement speed for 1 second. 90 second cooldown. 3000 gold.
  • SC Guardian Angel item.png Guardian Angel: +40 magic resistance, +50 armor. Unique Passive: Revives your champion upon death, restoring 30% health and mana. This effect can only occur once every 5 minutes. 2600 gold.
  • SH Mercurial Scimitar item.png Mercurial Scimitar: +45 magic resistance, +80 attack damage. Unique Active - Quicksilver: Removes all debuffs from your champion and grants 50% bonus movement speed for 1 second. 90 second cooldown. 3800 gold.
  • C Odyn's Veil 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 200) to nearby enemy units. 90 second cooldown. 2520 gold.
  • H Orb of Winter item.png Orb of Winter: +70 magic resistance, +20 health regeneration. Unique: Grants a shield that absorbs up to 30 + (10 per level) damage. This shield refreshes after no damage is taken from enemy champions for 9 seconds. 2080 gold.

Champion abilities

  • AkaliSquare.png Akali's Twilight Shroud.png Twilight Shroud lays down a cover of smoke for 8 seconds where she gains 10 / 20 / 30 / 40 / 50 magic resistance while inside.
  • AnnieSquare.png Annie's Molten Shield.png Molten Shield increases her magic resistance by 20 / 30 / 40 / 50 / 60 for 5 seconds.
  • GalioSquare.png Galio's Bulwark.png Bulwark increases an allied champion's magic resistance by 30 / 45 / 60 / 75 / 90 for 4 seconds.
  • GarenSquare.png Garen's Courage.png Courage increases his magic resistance equal to 20% of bonus magic resistance.
  • GravesSquare.png Graves's True Grit.png True Grit increases his magic resistance by 1 / 2 / 3 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.
  • JaxSquare.png Jax's Grandmaster's Might.png Grandmaster's Might increases his magic resistance by 25 / 35 / 45 (+20% AP) for 8 seconds.
  • KennenSquare.png Kennen's Lightning Rush.png Lightning Rush increases his magic resistance by 10 / 20 / 30 / 40 / 50 for 4 seconds.
  • JayceSquare.png Jayce's Transform- Mercury Hammer.png Transform: Mercury Hammer increases his magic resistance by 5 / 15 / 25 / 35.
  • LeonaSquare.png Leona's Eclipse.png Eclipse increases her magic resistance by 25 / 35 / 45 / 55 / 65 (+ 20% bonus MR) for 3 seconds, deals damage after that time to units around her, and retains the defensive buff for an additional 3 seconds if any enemy is struck by the blast.
  • MordekaiserSquare.png Mordekaiser's Creeping Death.png Creeping Death increases an allied unit's magic resistance by 10 / 15 / 20 / 25 / 30 for 6 seconds.
  • OlafSquare.png Olaf's Ragnarok.png Ragnarok passively increases his magic resistance by 10 / 20 / 30. He loses the passive while his ability is active.
  • OriannaSquare.png Orianna's Command- Protect.png Command: Protect increases an allied champion's magic resistance by 10 / 15 / 20 / 25 / 30 as long as the ball is attached to it.
  • RammusSquare.png Rammus's Defensive Ball Curl.png Defensive Ball Curl increases his magic resistance by 40 / 60 / 80 / 100 / 120 for 6 seconds.
  • RengarSquare.png Rengar's Battle Roar.png Battle Roar Rengar lets out a battle roar, damaging enemies increases his magic resist by 15 / 22 / 29 / 36 / 43 for 3 seconds.
  • ShyvanaSquare.png Shyvana's Dragonborn.png Dragonborn passively increases her magic resistance by 5 / 10 / 15 / 20. This bonus is doubled while she is in dragon form.
  • SingedSquare.png Singed's Insanity Potion.png Insanity Potion increases his magic resistance by 35 / 50 / 65 for 25 seconds.
  • SonaSquare.png Sona's Aria of Perseverance.png Aria of Perseverance:
    • Aura: increases nearby allied champions' magic resistance by 6 / 7 / 8 / 9 / 10 while active and persists for two seconds after deactivation.
    • Activation: increases hers and one nearby allied champion's magic resistance by an extra 6 / 7 / 8 / 9 / 10 for 3 seconds.
  • TrundleSquare.png Trundle's Subjugate.png Subjugate immediately steals 20% of the target's magic resistance, and a further 20% over 4 seconds. These magic resistance bonuses lasts for another 4 seconds after the drain completes.
  • UrgotSquare.png Urgot's Hyper-Kinetic Position Reverser.png Hyper-Kinetic Position Reverser increases his magic resistance by 60 / 90 / 120 for 5 seconds.
  • WukongSquare.png Wukong's Stone Skin.png Stone Skin grants him 4 / 6 / 8 magic resistance for each nearby enemy champion.
  • XinZhaoSquare.png Xin Zhao's Crescent Sweep.png Crescent Sweep increases his magic resistance by 15 / 20 / 25 for each enemy champion hit for 8 seconds.

Masteries

  • Enchanted Armor mastery s4.png Enchanted Armor increases bonus Armor and Magic Resistance by 2.5 / 5%.
  • Resistance mastery s4.png Resistance increases Magic Resistance by 2 / 3.5 / 5.
  • Legendary Guardian mastery s4.png Legendary Guardian increases Armor by 1 / 2 / 3 / 4 and Magic Resistance by 0.5 / 1 / 1.5 / 2 for each nearby enemy champion.

Runes

Other

  • Disconnecting gives approximately +1000 magic resistance.

Ways to reduce magic resistance

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

List of champions' magic resistance

Trivia

Around Wikia's network

Random Wiki