Magic resistance

Magic resistance (commonly called MR Magic Resistance) is a statistic possessed by units, including minions, monsters, and. Increasing magic resistance reduces magic damage taken by units. Each champion starts out with some magic resistance that can be increased by leveling up. Additional magic resistance can be gained through skills, items, masteries, and runes. This statistic is additively accumulated.

All champions start with 30 base magic resistance. Currently no ranged champion gains magic resistance per level, but most melee champions do, except Kassadin, Maokai, Poppy, Shen, Singed, y Yasuo.

Elise, Gnar, Jayce, Kayle y Nidalee does not gain magic resistance per level as they are not always melee champions by varying their attack range.

All champions who do gain magic resistance per level get 1.25 when leveling up, reaching 52.5 base magic resistance at level 18.

Summary

• 1 Damage reduction
• 2 Building magic resistance
• 3 Scale from magic resistance
  • 3.1 Champions
  • 3.2 Objects
• 4 Increasing magic resistance
  • 4.1 Objects
  • 4.2 Champion skills
  • 4.3 Masteries
  • 4.4 Speech
  • 4.5 Other
• 5 ways to reduce magic resistance
• 6 List of Champions' Magic Resistance

Damage reduction

Magic resistance reduces the damage of incoming magic 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 magic resistance takes 60% reduced damage from magic attacks. Incoming magic damage is multiplied by a factor based on the unit's magic resistance (same for armor):

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

Example:

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

Building magic resistance

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

Example: A unit with 60 magic resistance has 160% of its maximum health as effective life, so if the unit has 1000 maximum health points, it will need to take 1600 points of magic damage to be killed.

What it means: by definition, magic resistance has no diminishing returns, because each point increases the unit's effective life against magic damage by 1% of its real life 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 heals and shields more effective since removing the extra health gained requires more effort from enemies. This is called an indirect scale.

Scale from magic resistance

The following uses the champion's magic resistance to increase the magnitude of the ability. May involve full or additional magic resistance. By acquiring magic resistance items, you can receive more benefits and powers from these abilities.

Champions

• Behind me of Braum grants magic resistance equal to 10 / 11.5 / 13 / 14.5 / 16% of his bonus magic resistance to himself and the target ally (plus a base amount) for 3 seconds.
• Courage of Garen grants him bonus magic resistance equal to 20% of his bonus magic resistance.
• Runic Skin Runic Skin of Galio grants him ability power equal to 50% of his total magic resistance.
• Eclipse of Leona grants bonus magic resistance plus 20% of her bonus magic resistance for the duration of the ability.
• Subjugate Trundle takes 40% of the target's magic resistance and gains the same amount as magic resistance. Half of this magic resistance is drawn when using the ability, and the other half over 4 seconds. The magic resistance bonus / reduction lasts for another 4 seconds after the drain completes.

Objects

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

Increasing magic resistance

Objects

Main article: Magic Resistance Items

Champion abilities

• Molten Shield of Annie increases her magic resistance by 10/20/30/40/50 for 5 seconds.
• Rebirth of Anivia allows her to turn into an egg for up to 6 seconds upon reaching 0 health. While in this state, he receives an armor modifier of & minus / 40.
• Behind me of Braum grants magic resistance equal to 10 / 11.5 / 13 / 14.5 / 16% of his bonus magic resistance to himself and the target ally (plus a base amount) for 3 seconds.
• Bulwark of Galio increases an allied champion's magic resistance by 30/45/60/75/90 for 4 seconds.
• Courage of Garen increases his magic resistance by 20% of his bonus magic resistance.
• Gene's Fury Gnar increases his magic resistance by 2x level when he transforms into Mega Gnar.
• True Value True Value of Graves increases his magic resistance by 1.2.3 every second he remains in combat. This bonus stacks up to 10 times. Graves is considered to be in combat if he has dealt or taken damage in the last 3 seconds.
• Grandmaster's Force Jax increases his magic resistance by 20/35/50 (+ 20% of his AP) for 8 seconds.
• Lightning Boost of Kennen increases his magic resistance by 10/20/30/40/50 for 4 seconds.
• Transform: Hammer of Mercury Transform: Hammer of Mercury Jayce increases his magic resistance by 5/15/25/35.
• Eclipse of Leona increases her magic resistance by 20/30/40/50/60 (+ 20% of her 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 an enemy is hit by the blast.
• Sneaky Death Sneaky Death of Mordekaiser increases a friendly unit's magic resistance by 10/15/20/25/30 for 6 seconds.
• Ragnarok of Olaf passively increases his magic resistance by 10/20 / 30. He loses this passive while the ability is active.
• Order: Protect From Orianna increases an allied champion's magic resistance by 10/15/20/25/30 while the ball is on it.
• Defensive Position of Rammus increases his magic resistance by 40/60/80/100/120 for 6 seconds.
• Battle Roar of Rengar damages his enemies and increases their magic resistance by 10/15/20/25/30 for 4 seconds. Rengar gains 50% additional magic resistance for each hit from an enemy champion or giant monster.
• Daughter of the Dragon Daughter of the Dragon of Shyvana passively increases her magic resistance by 5/10/15 / 20. This bonus is doubled when in dragon form.
• Potion of Insanity Potion of Insanity Singed increases his magic resistance by 35/50/65 for 25 seconds.
• Subjugate Trundle immediately steals 20% of the target's magic resistance, and an additional 20% over 4 seconds. This bonus magic resistance lasts for another 4 seconds after the drain completes.
• I'm going back Posicional Hipercinético I'm back Urgot increases his magic resistance by 60/90/120 for 5 seconds.
• Stone Skin Wukong grants you 4.6.8 magic resistance for each nearby enemy champion.
• Increasing Sweep Increasing Sweep of Xin Zhao increases his magic resistance by 15/20/25 for each enemy champion hit for 8 seconds.

Master Degrees

• Enchanted Armor Enchanted Armor increases armor and bonus magic resistance by 2.5 / 5%.
• Resistance Resistance increases magic resistance by 2 / 3.5 / 5.
• Legendary Guardian 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

• The Magic Resistance and Progressive Magic Resistance runes increase magic resistance.

Others

• Disconnecting grants approximately +1000 magic resistance.

Ways to reduce magic resistance

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

Champions Magic Resistance List

Main article: List of magic resistance of all champions v · eChampion Stats  v · Champions Statistics