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Critical strike

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A critical strike is a modifier that causes an attack to deal twice its normal damage. This could represent an attack that hits harder, a lucky strike or damaging a weak area on an opponent.

Most champions have different attack animations for a critical strike, though some do not; this includes mages and other champions not meant to be built using autoattacks for damage. Some of these champions performing a critical strike (if built being able to perform them) may instead have a soundbite that plays in place of an animation, typically a grunt of effort.

Players can increase the chance and the damage of critical strikes with items, abilities, and runes.

It only applies to basic attacks or certain abilities like GangplankSquare.png Gangplank's Parrrley.png Parrrley and YasuoSquare.png Yasuo's Steel Tempest.png Steel Tempest that act like a basic attack or GarenSquare.png Garen's Judgment.png Judgment and MasterYiSquare.png Master Yi's Alpha Strike.png Alpha Strike,which are specially stated.

Critical strike is valuable for all champions who primarily deal damage with automatic attacks, rather than through abilities. Some champions, such as AsheSquare.png Ashe, have an affinity for critical hits and benefit more from items that improve them.

It's important to note that you cannot score a critical strike against a building such as a turret or inhibitor.

Chance

Critical strike chance is the chance of a champion's physical attacks dealing a critical strike. Critical strike chance stacks additively. Runes, items and all abilities can increase critical strike chance.

When averaged over a large number of autoattacks and at base critical damage, critical strike chance is essentially a damage multiplier where each % of crit chance adds 1% damage. Thus at 50% critical strike chance a champion will be doing (on average) 150% damage with autoattacks, not counting bonus critical strike damage. Because of this, critical strike chance scales well with both attack damage and attack speed. The formula for this damage multiplier is given by:

Damage multiplier = 1 + (Critical chance*(1 + Bonus critical damage))

The maximum critical strike chance you can reach at level 1 through masteries is 20.25%, excluding abilities and items.

Critical strike chance has a hard cap at 100%.

Critical strike chance has a theoretical gold value of 50 gold per 1% critical strike chance. This makes Cloak of Agility the most efficient core item for critical strike chance, as it grants 15% critical chance for the cost of 730 gold with a 48.6 gold per % crit chance efficiency.

Increasing critical strike chance

Items

Core

  • Atma's Impaler item.png Atma's Impaler: +15% critical strike chance, +45 armor. Unique Passive: You gain attack damage equal to 1.5% of your maximum health. 2300 gold.
  • Avarice Blade item.png Avarice Blade: +10% critical strike chance. Unique Passive - Avarice Gain +3 gold per 10 seconds. Unique Passive - Greed: gain an additional 2 gold on every kill. 800 gold.
  • Brawler's Gloves item.png Brawler's Gloves: +8% critical strike chance. 400 gold.
  • Cloak of Agility item.png Cloak of Agility: +15% critical strike chance. 730 gold.
  • Executioner's Calling item.png Executioner's Calling: +20% critical strike chance, +25 attack damage. Unique: your basic attacks inflict Grievous Wounds on enemy champion for 1.5 seconds. 1900 gold.
  • Phantom Dancer item.png Phantom Dancer: +30% critical strike chance, +50% attack speed, +5% movement speed. Unique Passive: Your champion ignores unit collision. 2800 gold.
  • Statikk Shiv item.png Statikk Shiv: +20% critical strike chance, +40% attack speed, +6% movement speed. Unique Passive: Moving and attacking builds Static Charges. At 100 charges, your next attack expends the charges to deal 100 magic damage to up to 4 targets. This damage can critically strike. 2500 gold.
  • Sword of the Divine item.png Sword of the Divine: Active: You gain 100% attack speed and 100% critical strike for 3 seconds or 3 critical strikes - 60 second cooldown. +45% attack speed. Passive: This item does not grant any attack speed while on cooldown. Champion kills reduce the current cooldown by 50%. 2150 gold.
  • Trinity Force item.png Trinity Force: +10% critical strike chance, +30 ability power, +30 attack damage, +30% attack speed, +250 health, +200 mana, +8% movement speed.Unique Passive - Rage: Basic attacks grant 20 movement speed for 2 seconds on hit. Minion, monster, and champion kills grant 60 movement speed for 2 seconds. The movement speed bonus is halved for ranged champions. Unique Passive - Spellblade: After using an ability, your next basic attack deals bonus damage equal to 200% of your base attack damage (1.5 second cooldown). 3703 gold.
  • Youmuu's Ghostblade item.png Youmuu's Ghostblade: +15% critical strike chance, +30 attack damage, +10% cooldown reduction, +20 armor penetration. Unique active: +40% attack speed and +20% movement speed for 6 seconds - 45 second cooldown. 2700 gold.
  • Zeal item.png Zeal: +10% critical strike chance, +20% attack speed, +5% movement speed. 1100 gold.

Variable Availability

  • SH Infinity Edge item.png Infinity Edge: +25% critical strike chance, +80 attack damage. Unique Passive: +50% critical strike damage. 3800 gold.
  • TC Lord Van Damm's Pillager item.png Lord Van Damm's Pillager: +25% critical strike chance, +80 attack damage. Unique Passive: +50% critical strike damage. 3800 gold.
  • TCH The Lightbringer item.png The Lightbringer: +30% critical strike chance, +30 attack damage. Unique Passive: Critical strikes causes your target to bleed for an additional 90% of your bonus AD as physical damage over 3 seconds and are revealed for the duration of the bleed. UNIQUE PASSIVE – TRAP DETECTION: Nearby stealthed enemy traps are revealed. UNIQUE: Covers a target area in a stealth-detecting mist that grants vision for 5 seconds and reveals enemies that enter it for 3 seconds. 60 second cooldown. (800 range) 2280 gold.
  • TCH Wicked Hatchet item.png Wicked Hatchet: +10% critical strike chance, +20 attack damage. Unique Passive: Critical strikes causes your target to bleed for an additional 60% of your bonus AD as physical damage over 3 seconds. 1200 gold.

Champion abilities

(Note that any ability boosting attack speed has an indirect impact on the number of crits)

  • AsheSquare.png Ashe's Focus.png Focus gains 4 / 5 / 6 / 7 / 8 Focus stacks per second after not dealing damage in the last 3 seconds. At 100 stacks, Ashe will critically strike on her next basic attack. Thereafter, Focus stacks will reset to an amount equal to her critical strike chance.
  • PantheonSquare.png Pantheon's Certain Death.png Certain Death grants him 100% critical strike chance against targets below 15% of their maximum health.
  • ShacoSquare.png Shaco's Deceive.png Deceive grants him 100% critical strike chance on his next attack, but for modified critical damage: 40 / 60 / 80 / 100 / 120%.
  • TryndamereSquare.png Tryndamere's Battle Fury.png Battle Fury passively increases his critical strike chance by 0.35% per point of Fury he currently has.
  • YasuoSquare.png Yasuo's Way of the Wanderer.png Way of the Wanderer doubles his critical strike chance, but the damage dealt by his critical strikes is reduced by 10%.

Runes

Critical Chance Runes

  • Marks:+0.52% / +0.72% / +0.93% (primary)
  • Seals:+0.23% / +0.32% / +0.42%
  • Glyphs:+0.15% / +0.22% / +0.28%
  • Quintessences:+1.03% / +1.44% / +1.86%

Damage

Critical strike damage refers to the amount of damage that a champion's critical strike will deal. All champions have 200% critical strike damage by default, except Yasuo who has 180% to compensate for his doubled crit chance. In most cases, critical strike damage stacks additively. Damage modifiers apply to critical strike damage normally.

Modifying Critical Strike Damage

Champion Abilities
  • ShacoSquare.png Shaco's Deceive.png Deceive modifies his base critical strike damage to 140 / 160 / 180 / 200 / 220% from the default of 200%.
  • YasuoSquare.png Yasuo's Way of the Wanderer.png Intent multiplicatively reduces by 10% his total critical strike damage (e.g. 200% to 180%).

Items

  • SH Infinity Edge item.png Infinity Edge: Unique Passive: +50% critical strike damage. +80 attack damage, +25% critical strike chance. 3800 gold.
  • TC Lord Van Damm's Pillager item.png Lord Van Damm's Pillager: Unique Passive: +50% critical strike damage. +80 attack damage, +25% critical strike chance. 3800 gold.

Runes

Critical Damage Runes
  • Marks: +1.24% / +1.74% / +2.23% (primary)
  • Seals: +0.43% / +0.61% / +0.78%
  • Glyphs: +0.31% / +0.43% / +0.56%
  • Quintessences: +2.4% / +3.47% / +4.46%

Notes

  • The maximum bonus critical strike damage obtainable is as follows:
    • Runes: 45.51%
    • Items: 50%
  • For most champions, the maximum critical strike damage available is 195.51% for a total of amount of 295.51% attack damage on their critical strikes.
    • Including the additional 20% base critical strike damage from rank-5 Deceive.png Deceive, ShacoSquare.png Shaco's will deal 315.51% attack damage on his critical strike.

Skills affected by Critical Chance

Certain skills are capable of Critical Strikes and/or are affected by Critical Chance

  • Others
    • CaitlynSquare.png Caitlyn's Headshot.png Headshot: Critical strikes do bonus (125%AD  × Critical strike damage  − 150%) against champions or (175%AD  × Critical strike damage  − 250%) against minions and monsters.
    • GangplankSquare.png Gangplank's Parrrley.png Parrrley: Critical strikes do bonus entire damage  × (Critical strike damage  − 100%).
    • GarenSquare.png Garen's Judgment.png Judgment: Critical strikes do bonus AD ratio damage portion  × (Critical strike damage  − 150%).
    • JayceSquare.png Jayce's Hyper Charge.png Hyper Charge: Critical strikes do bonus entire damage  × (Critical strike damage  − 100%).
    • LucianSquare.png Lucian's Lightslinger.png Lightslinger: The additional shot does bonus 50%AD × (Critical strike damage  − 100%) if it is a critical strike.
    • MasterYiSquare.png Master Yi's Double Strike.png Double Strike: The additional strike does bonus 50%AD × (Critical strike damage  − 100%) if it is a critical strike.
      • Alpha Strike.png Alpha Strike: Critical strikes do bonus 60%AD  × (Critical strike damage  − 100%).
    • NasusSquare.png Nasus's Siphoning Strike.png Siphoning Strike: Critical strikes do bonus base damage  × (Critical strike damage  − 100%).
    • YasuoSquare.png Yasuo's Steel Tempest.png Steel Tempest: Critical strikes do bonus (75%AD  × Critical strike damage  − 100%).
  • Additions
    • ShacoSquare.png Shaco's Backstab.png Backstab: Critical strikes do Damage bonus increases damage after critical modifier.
    • TalonSquare.png Talon's Mercy.png Mercy: Critical strikes do Damage bonus increases damage after critical modifier.
    • TryndamereSquare.png Tryndamere's Spinning Slash.png Spinning Slash: Cooldown is reduced by 1 second for every critical strike. This effect is doubled against champions.

Miscellaneous

Other skills that are not be affected by critical strikes and chances, due to other reasons.

  • Affected by Critical strike damage
    • ShacoSquare.png Shaco's Deceive.png Deceive: Causes next auto-attack during the next 6 seconds to deal increased damage, which is described as a "Critical Strike".
    • PantheonSquare.png Pantheon's Spear Shot.png Spear Shot: Will crit for a +100% damage bonus due to the passive from Certain Death.png Certain Death if the target is under 15% health.
  • Unaffected by Critical strike damage
    • AniviaSquare.png Anivia's Frostbite.png Frostbite: The 2x damage modifier applied by being chilled by Flash Frost.png Flash Frost is given out as critical strike.
    • GnarSquare.png Gnar's GNAR!.png GNAR!: The damage is given out as critical strike when enemy hits terrain.
    • GragasSquare.png Gragas's Barrel Roll.png Barrel Roll: The damage is given out as critical strike when the cask ferments after 2 seconds.
    • KarthusSquare.png Karthus's Lay Waste.png Lay Waste: Appears like a critical strike when acting like a single target spell (hitting only one enemy).
    • SorakaSquare.png Soraka's Starcall.png Starcall: The damage is given out as critical strike when enemy stands in the center.
    • VayneSquare.png Vayne's Condemn.png Condemn: The double-damage proc'd by being knocked into a wall is given out as critical strike.


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