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Damage modifier

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Damage modifiers refer to the buffs or debuffs applied to a unit that causes it to deal or receive increased or decreased damage. These are percentage values. They don't add extra flat damage but modify all damage normally done. These buffs or debuffs are only received by champion abilities, neutral buffs, on-hit effects from items and masteries.

Damage dealt modifier

These are buffs that allow the champion that has them to deal increased or decreased magic or physical damage from basic attacks, abilities, and item actives. The raw value from the attack or ability is increased or decreased by the modifier and then applied to the target.

All damage dealt modifiers stack multiplicatively. Since multiplication is commutative, the order is irrelevant. Example: If Swain Swain uses Torment.png Torment while affected by Urgot Urgot's Zaun-Touched Bolt Augmenter.png Zaun-Touched Bolt Augmenter, his damage to the afflicted target will be modified by 102% (120% × 85%).

Increasing damage dealt

Champion abilities

Note: Only the damage modifier effect of these abilities is shown here, to read more information on each of these abilities, follow the link on each of them.

Masteries

  • Assassin mastery 2016.png Assassin: Grants 2% increased damage against enemy champions while no allied champions are nearby. (800 range)
  • Battle Trance mastery 2017.png Battle Trance: Grants up to 3% increased damage over 3 seconds when in combat with enemy champions.
  • Bounty Hunter mastery 2016.png Bounty Hunter: Grants 1% increased damage for each unique enemy champion you kill. (Your damage output increases by 1% each time you kill an enemy champion for the first time)
  • Double-Edged Sword mastery S4.png Double-Edged Sword: You deal 3% increased damage from all sources, but take 1.5% increased damage from all sources.
  • Executioner mastery s4.png Merciless: Grants 0.6 / 1.2 / 1.8 / 2.4 / 3% increased damage against champions below 40% health.
  • Butcher mastery s4.png Savagery: Basic attacks and single target spells deal 1 / 2 / 3 / 4 / 5 bonus damage to minions and monsters.
  • Sorcery mastery s4.png Sorcery: Increases ability and spell damage by 0.4 / 0.8 / 1.2 / 1.6 / 2%.

Decreasing damage dealt

Champion abilities

Note: Only the damage modifier effect of these abilities is shown here, to read more information on each of these abilities, follow the link on each of them.

Summoner Spell

  • Exhaust.png Exhaust: Exhausts target enemy champion, Slow icon slowing them by 30%, and reducing their damage dealt by 40% for 2.5 seconds. (650 range) (210 second cooldown)

Damage received modifier

These are buffs or debuffs that allow the champion that have them to receive increased or decreased magic or physical damage from autoattacks, abilities and item's actives. The final value from the attack or ability is increased or decreased by the modifier and then directly applied to the target's health.

Armor and magic resistance damage reduction percentage count as one source of damage received modifier against physical and magical damage respectively. For example, a champion with 300 armor has 75% damage reduction from physical damage.

Damage reduction from armor and magic resistance and from any other sources stack multiplicatively.

Increasing damage received

Note: Only the damage modifier effect of these abilities is shown here, to read more information on each of these abilities, follow the link on each of them.

Champion abilities

  • Vladimir Vladimir's Hemoplague.png Hemoplague affects all targets hit to receive 10% increased damage from all sources for the next 5 seconds.

Items

  • Abyssal Scepter item.png Abyssal Scepter: Aura: Unique: Nearby enemy champions take 10% more magic damage (700 range)

Masteries

  • Double-Edged Sword mastery S4.png Double-Edged Sword: You deal 3% increased damage from all sources, but take 1.5% increased damage from all sources.

Decreasing damage received

Champion abilities

Note: Only the damage modifier effect of these abilities is shown here, to read more information on each of these abilities, follow the link on each of them.

  • Alistar Alistar's Unbreakable Will.png Unbreakable Will grants him 50% / 60% / 70% damage reduction for 7 seconds.
  • Annie Annie's Molten Shield.png Molten Shield grants her 16% / 22% / 28% / 34% / 40% damage reduction for 3 seconds.
  • Braum Braum's Unbreakable.png Unbreakable grants him 30% / 32.5% / 35% / 37.5% / 40% damage reduction from oncoming sources (excluding true damage and towers) for 3 / 3.25 / 3.5 / 3.75 / 4 seconds. The damage reduction is increased to 100% for the first source of champion damage that would be reduced.
  • Galio Galio's Shield of Durand.png Shield of Durand grants him 20 / 25 / 30 / 35 / 40% (+ 8% per 100 bonus MR) damage reduction while channeling for up to 2 seconds and for another 2 seconds after casting the ability again.
    • Galio Galio's Hero's Entrance.png Hero's Entrance grants the target ally 20 / 30 / 40%(+ 8% per 100 bonus MR) damage reduction until he lands.
  • Garen Garen's Courage.png Courage places a defensive shield on himself, decreasing all damage taken by 30% for 2 / 3 / 4 / 5 / 6 seconds.
  • Gragas Gragas' Drunken Rage.png Drunken Rage makes him take a long swig from his barrel, disabling his ability to cast or attack for 1 second and receive 10% / 12% / 14% / 16% / 18% reduced damage for 3 seconds.
  • Kassadin Kassadin's Void Stone.png Void Stone reduces all magic damage taken by 15%.
  • Malzahar Malzahar's Void Shift.png Void Shift grants him 90% damage reduction against the first spell or autoattack that hits him, lingering for 0.25 seconds.
  • Maokai Maokai's Vengeful Maelstrom old2.png Vengeful Maelstrom creates a great vortex of natural energy around himself reducing non-tower damage done to allied champions in the area by 20% up to 10 seconds.
  • Master Yi Master Yi's Meditate.png Meditate grants him 50 / 55 / 60 / 65 / 70% damage reduction up to 4 seconds while channeling.
  • Urgot Urgot's Hyper-Kinetic Position Reverser.png Hyper-Kinetic Position Reverser grants 30 / 40 / 50% damage reduction for 5 seconds.
  • Warwick Warwick's Primal Howl.png Primal Howl grants him 35 / 40 / 45 / 50 / 55% damage reduction for 2 seconds or until he reactivates the ability.

Summoner Spells

  • Challenging Smite.png Challenging Smite: Smiting deals 390 - 1000 (based on level) true damage, based on champion level, to a monster or enemy minion. Challenging Smite can be cast on enemy champions, True Sight icon revealing them for 4 seconds, reducing their damage against you by 20% and making them take 60 - 162 (based on level) true damage over 3 seconds from your basic attacks for the duration. (500 Range model range) (15 second cooldown)

Items

Damage immunity

There are some instances in the game where a champion is immune to receiving any kind of damage (including true damage) for a few seconds.

Champions

  • Aatrox Aatrox's Blood Well.png Blood Well grants him damage immunity while reviving and restoring health.
  • Bard Bard's Tempered Fate.png Tempered Fate grants affected units damage immunity for 2.5 seconds.
  • Fiora Fiora's Riposte.png Riposte grants her damage immunity for 0.75 seconds.
  • Kalista Kalista's Fate's Call.png Fate's Call grants the oathsworn ally damage immunity for up to 4 seconds.
  • Kayle Kayle's Intervention.png Intervention grants the target ally champion damage immunity for 2 / 2.5 / 3 seconds.
  • Kindred Kindred's Lamb's Respite.png Lamb's Respite grants all units inside the affected area become immune to damage when they are reduced to 10% of their maximum health.
  • Lissandra Lissandra's Frozen Tomb.png Frozen Tomb grants her damage immunity for 2.5 seconds if cast on herself.
  • Taric Taric's Cosmic Radiance.png Cosmic Radiance grants him and all nearby allied champions damage immunity for 2.5 seconds after a 2.5 second delay.
  • Zilean Zilean's Chronoshift.png Chronoshift grants the target damage immunity for 2 seconds if it takes fatal damage within 5 seconds.

Items

  • Zhonya's Hourglass item.png Zhonya's Hourglass: Active: Unique – Stasis: Put yourself in Stasis icon stasis for 2.5 seconds, rendering yourself untargetable and invulnerable for the duration, but also unable to move, attack, cast spells, or use items during this time. 120 second cooldown.
  • Guardian Angel item.png Guardian Angel: Passive: Unique: Upon taking lethal damage, restores the greater of 700 health or 30% of maximum health and 30% of maximum mana after 4 seconds of stasis (300 second cooldown).

Flat Damage Reduction

Several champions have abilities that reduce damage by a flat amount.Some flat damage reductions are factored in after armor or magic resistance. This makes it significantly better the more resistances you have. In addition, periodic damage effects will have each tick of damage reduced. For example, Malzahar Malzahar's Malefic Visions.png Malefic Visions ticks 8 times, so 1 flat damage reduction would reduce its total damage by 8.

Flat damage reduction does not work against true damage.

Champions

  • Amumu Amumu's Tantrum.png Tantrum provides 2 / 4 / 6 / 8 / 10 physical flat damage reduction.
  • Fizz Fizz's Nimble Fighter.png Nimble Fighter provides 4 - 14 (based on level) flat damage reduction against auto-attacks.

Items

Masteries

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