Critical strike

A critical strike is a damage event that deals 175% of its normal damage by default, denoted as  critical strike damage. This can occur on some items and abilities, and almost always on basic attacks. Depending on the effect, a critical strike would occur under specific conditions, or based on  critical strike chance.

The most common form of critical strike occurs on basic attacks, which cannot critically strike structures. The exceptions are Fiora's Bladework, Jhin's Whisper, Master Yi's Double Strike, and Rengar's Savagery.

Champions can increase their chances to critically strike and the damage they deal with critical strikes using items and abilities. Critical strikes are especially valuable for champions who deal damage primarily with basic attacks rather than abilities. Some champions, like Ashe, have an affinity for critical strikes and benefit more than others from items that improve them.

Critical strike chance

 Critical strike chance (often simply crit chance) is a stat that denotes the probability, or chance, that a basic attack will critically strike. Some damaging effects may be able to critically strike using the same chance, some others may scale with critical strike chance but are usually not able to critically strike themselves, and some may critically strike without a pre-requisite for this chance but based on other conditions.

• Critical strike chance stacks additively, and each point acquired directly adds to the statistic (1:1).

All champions start with 0% critical strike chance, and the only ways to increase it are items or abilities. Critical strike chance cannot exceed 100%, but some effects may be special-cased to benefit from the excess, such as by granting additional statistics (e.g. Senna's Absolution).

Gold Value ​​​​​​​​​​

• Critical strike chance has a gold value of 40 per point.

Algorithm

The probability of a critical strike dynamically updates based on how many attacks have critically striked.

If an attack does not critically strike over multiple attempts, the probability will progressively increase for future attempts—this can occur vice versa, where multiple successful critical strikes will cause the probability to progressively decrease for future attempts.

When averaged over a high number of basic attacks (i.e. calculating damage per second), critical strike chance is essentially a damage multiplier. At base critical strike damage (75% bonus damage), every 1% of critical chance equates to a 0.75% damage increase.

For example, the damage dealt with basic attacks by a champion with 50% critical strike chance and base critical damage is on average 137.5% of the damage they would deal if they had 0% critical strike chance.

For this reason, critical strike chance scales well with both attack damage and attack speed. The formula for this damage multiplier is:

Average damage multiplier = 1 + (Critical chance × (0.75 + Bonus critical damage))

Increasing critical strike chance

Items

This table is automatically generated based on the data from Module:ItemData/data.

Item	Cost	Amount	Availability
Atma's Reckoning Atma's Reckoning	2500	20%	Arena
Cloak of Agility Cloak of Agility	600	15%	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Essence Reaver Essence Reaver	2900	25%	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Force of Entropy Force of Entropy	0	25%	Arena
Galeforce Galeforce	0	25%	Arena
Hamstringer Hamstringer	0	25%	Arena
Immortal Shieldbow Immortal Shieldbow	3000	25%	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Infinity Edge Infinity Edge	3600	25%	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Lord Dominik's Regards Lord Dominik's Regards	3000	25%	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Mortal Reminder Mortal Reminder	3200	25%	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Navori Flickerblade Navori Flickerblade	2650	25%	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Noonquiver Noonquiver	1300	20%	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Phantom Dancer Phantom Dancer	2650	25%	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Rapid Firecannon Rapid Firecannon	2650	25%	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Rite of Ruin Rite of Ruin	2500	20%	Arena
Runaan's Hurricane Runaan's Hurricane	2650	25%	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Stormrazor Stormrazor	2500	25%	Arena
Sword of the Divine Sword of the Divine	0	40%	Arena
Talisman of Ascension Talisman of Ascension	0	0%	Arena
The Collector The Collector	3000	25%	Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
The Golden Spatula The Golden Spatula	0	25%	Arena
Zeal Zeal	1200	15%	Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid

Champion abilities

• Senna's Absolution
• Tryndamere's Battle Fury
• Yasuo's Way of the Wanderer
• Yone's Way of the Hunter

Critical strike chance as scaling

Some game elements scale with the champion's amount of critical strike chance.

Champion abilities

• Akshan's Comeuppance
• Ashe's Frost Shot
• Caitlyn's Headshot
• Corki's Missile Barrage
• Gangplank's Trial by Fire
• Jhin's Whisper
• Kindred's Mounting Dread
• Lucian's The Culling
• Nilah's Formless Blade and Apotheosis
• Quinn's Harrier
• Rengar's Savagery
• Senna's Absolution
• Sivir's Boomerang Blade
• Smolder's Dragon Practice, Super Scorcher Breath, and Flap, Flap, Flap
• Tristana's Explosive Charge
• Twisted Fate's Pick a Card
• Viego's Blade of the Ruined King and Heartbreaker
• Xayah's Bladecaller
• Xin Zhao's Wind Becomes Lightning
• Yasuo's Way of the Wanderer
• Yone's Way of the Hunter
• Yuumi's Prowling Projectile
• Zeri's Spark Surge

Modifying critical strike damage

General

• In most cases, critical strike damage stacks additively.
• Damage modifiers apply to critical strike damage normally.

Champion abilities

• Ashe's Frost Shot
• Fiora's Bladework
• Jhin's Whisper
• Shaco's Deceive when used to Backstab
• Yasuo's Way of the Wanderer
• Yone's Way of the Hunter

Items

• Infinity Edge

Guaranteed critical strikes

Some game elements can critically strike with no dependence on critical strike chance.

Champion abilities

• Ashe's Volley
• Fiora's Bladework's second attack
• Jhin's Whisper's fourth attack and Curtain Call's fourth shot
• Kindred's Mounting Dread against low health enemies
• Miss Fortune's Double Up after killing the first target hit
• Rengar's Savagery
• Shaco's Deceive when used to Backstab
• Talon's Noxian Diplomacy when used in melee range
• Zeri's Ultrashock Laser when it collides with terrain

Items

• Shadowflame against enemies below a health threshold
• Sundered Sky

Game elements that can critically strike

Champion abilities

Basic attack modifiers

Many abilities in the game enhance basic attacks, causing them to deal increased damage. Since these are basic attacks, they can critically strike, with a few exceptions (see below), however, the ability's damage itself will only be amplified by a critical strike for the following abilities.

• Akshan's Dirty Fighting and Heroic Swing
• Aphelios' Infernum and Crescendum
• Bel'Veth's Void Surge and Royal Maelstrom
• Blitzcrank's Power Fist
• Briar's Blood Frenzy
• Darius' Crippling Strike
• Galio's Colossal Smash
• Graves' New Destiny
• Hecarim's Devastating Charge
• Jayce's Hyper Charge
• Jinx's Switcheroo!
• Lucian's Lightslinger
• Master Yi's Double Strike
• Nasus' Siphoning Strike (only the base damage)
• Pantheon's Shield Vault with Mortal Will empowered basic attacks
• Rek'Sai's Queen's Wrath (only to primary target)
• Riven's Runic Blade
• Shaco's Backstab and Deceive with Backstab
• Shyvana's Twin Bite
• Viego's Blade of the Ruined King
• Volibear's Thundering Smash
• Xin Zhao's Three Talon Strike

Other abilities

• Aphelios' Onslaught, Duskwave, Sentry and Moonlight Vigil
• Gangplank's Parrrley and Powder Keg
• Garen's Judgment
• Kayle's Fire Waves and Starfire Spellblade (while Aflame)
• Master Yi's Alpha Strike
• Miss Fortune's Double Up and Bullet Time
• Samira's Flair and Inferno Trigger
• Sivir's Ricochet
• Twitch's Spray and Pray
• Vi's Relentless Force
• Yasuo's Steel Tempest
• Yone's Mortal Steel
• Zeri's Burst Fire and Lightning Crash's physical damage chain

Items

Some items that deal bonus damage can critically strike if the basic attack that triggers them critically strikes.

• Runaan's Hurricane

Basic attacks that cannot critically strike

• Camille's Precision Protocol - both enhanced attacks cannot critically strike.
• Fiora's Bladework - the first attack cannot critically strike.
• Twisted Fate's Pick a Card - enhanced attack cannot critically strike.
• Zac's Stretching Strikes - enhanced attack cannot critically strike.
• Zeri's Living Battery - cannot critically strike.

Critically striking against structures

Critical strikes do not affect structures, with the following exceptions:

• Fiora's Bladework - second attack will also critically strike turrets.
• Jhin's Whisper - the fourth attack will also critically strike turrets.
• Master Yi's Double Strike - the additional attack can critically strike turrets.^(bug)
• Rengar's Savagery - the first attack will also critically strike turrets.

Interacting with critical strikes

• Aphelios' Infernum sprays 6 missiles in a wider cone when critically striking enemies and Crescendum has a reduced wind up percentage when critically striking enemies.
• Graves' New Destiny sprays 6 pellets in a wider cone when critically striking enemies.
• Jhin's Whisper grants him movement speed when critically striking enemies.
• Tryndamere's Spinning Slash reduces its  cooldown when critically striking enemies.
• Yasuo's Last Breath grants all critical strikes  armor penetration against  bonus armor.
• Zeri's Spark Surge will further reduce its  cooldown when Burst Fire or Ultrashock Laser critically strikes enemies and Lightning Crash will grant extra stacks when Burst Fire or Ultrashock Laser critically strikes enemies.
• Randuin's Omen reduces the damage dealt by incoming critical strikes from enemies.
• Yun Tal Wildarrows applies a bleed to the target on the user's critical strikes.

Trivia

• In many MMO settings, a number of attack damage-based assassins or secondary assassin-based champions also benefit from high critical strike chance in varying forms, as a means to help finish off targets faster as well as to deal more damage in bursts overall.
• Most champions have special basic attack animations when they critically strike, even champions that do not itemize critical strike chance. However, a few champions that typically itemize critical strike chance have quotes that play when they critically strike (grunt/huff of effort).
• Some champions may actually use their critical strike animation for an empowered basic attack, when consuming a single-use on-hit effect (this is entirely cosmetic by itself and does not represent an actual critical strike).

Champion statistics