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Critical strike icon

A critical strike is a damage event that deals 175% of its normal damage by default, denoted as Critical strike damage icon 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 icon critical strike chance.

The most common form of critical strike occurs on basic attacks, which cannot critically strike structures. The exceptions are Fiora's Fiora's Bladework Bladework, Jhin's Jhin's Whisper Whisper, Master Yi's Master Yi's Double Strike Double Strike, and Rengar's Rengar's Savagery 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 Ashe, have an affinity for critical strikes and benefit more than others from items that improve them.

Critical strike chance[]

Critical strike chance icon 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 Additive stacking icon 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 Senna's Absolution Absolution).

Gold Value ​​​​​​​​​​

  • Critical strike chance has a gold value of 40 Gold 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.

ItemCostAmountAvailability
Bloodthirster Bloodthirster3400 3400 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Cloak of Agility Cloak of Agility600 600 Gold15%Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid
Edge of Finality Edge of Finality3300 3300 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Essence Reaver Essence Reaver2900 2900 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Eye of the Storm Eye of the Storm3100 3100 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Immortal Shieldbow Immortal Shieldbow3000 3000 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Infinity Edge Infinity Edge3300 3300 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Kraken Slayer Kraken Slayer3000 3000 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Lord Dominik's Regards Lord Dominik's Regards3000 3000 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Mercurial Scimitar Mercurial Scimitar3000 3000 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Mortal Reminder Mortal Reminder3000 3000 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Navori Quickblades Navori Quickblades3300 3300 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Phantom Dancer Phantom Dancer2800 2800 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Rapid Firecannon Rapid Firecannon3000 3000 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Runaan's Hurricane Runaan's Hurricane2800 2800 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Statikk Shiv Statikk Shiv2700 2700 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Stormrazor Stormrazor3100 3100 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
The Collector The Collector3100 3100 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Wyrmfallen Sacrifice Wyrmfallen Sacrifice3000 3000 Gold20%Nexus Blitz, Arena, Classic Summoner's Rift 5v5, All Random All Mid
Zeal Zeal1100 1100 Gold15%Nexus Blitz, Classic Summoner's Rift 5v5, All Random All Mid

Champion abilities[]

Critical strike chance as scaling[]

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

Champion abilities[]

Items[]

Modifying critical strike damage[]

General[]

Champion abilities[]

Items[]

Guaranteed critical strikes[]

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

Champion abilities[]

Items[]

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.

Other abilities

Items[]

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

Basic attacks that cannot critically strike[]

Critically striking against structures[]

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

Interacting with critical strikes[]

Cosmetic critical strikes[]

Some ability damage is displayed as a critical strike under certain circumstances but do not count as a critical strike nor interact with critical strike mechanics. These are used for cosmetic purposes to indicate an empowered effect.

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).
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