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A critical strike is a basic attack or ability that deals twice its normal damage.

All basic attacks and some abilities can Critical strike icon critically strike. Most champions cannot critically strike structures. The exceptions are Fiora OriginalSquare Fiora, Jhin OriginalSquare Jhin, and Master Yi OriginalSquare Master Yi.

Most champions have special attack animations for critical strikes. This includes mages and other champions not meant to be built using basic attacks as their main source of damage. Other champions have a sound that plays when they critically strike, typically a grunt of effort.

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


Critical strike chance

Critical strike chance is the chance that a basic attack of a champion critically strikes. Every champion starts with 0% critical strike chance, and level-ups do not increase the critical strike chance.

Critical strike chance can be increased with items and abilities; it Additive stacking icon stacks additively, and each bonus point acquired directly affects its statistic. It cannot be increased beyond 100%, although some effects will benefit from the stat despite the cap.

Gold Value ​​​​​​​​​​: The critical strike chance has a gold value of Gold 40 per point.

The critical strike chance changes dynamically depending on the number of basic attack that didn't critically strike. For example, if you have a 30% critical strike chance you guaranteed to have 30 or more attacks that critically strike per 100 attacks. If you don't critically strike for a long time your next attacks have a higher chance of critically strkining.

When averaged over a large number of autoattacks critical strike chance is essentially a damage multiplier. At base critical damage (100% bonus damage) each 1% of critical chance adds 1% bonus damage. For example, the damage dealt with autoattacks by a champion with 50% critical strike chance and base critical damage is on average 150% of the damage he would deal if he had 0% critical strike chance. For this reason the critical strike chance scales well with both attack damage and attack speed. The formula for this damage multiplier is:

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

Increasing critical strike chance

Items

Item Cost Amount Availability
Cloak of Agility item Cloak of Agility800 Gold20 %All maps
Essence Reaver item Essence Reaver3300 Gold25 %All maps
Infinity Edge item Infinity Edge3400 Gold25 %All maps
Molten Edge item Molten Edge3400 Gold25 %All maps
Phantom Dancer item Phantom Dancer2600 Gold25 %All maps
Rapid Firecannon item Rapid Firecannon2600 Gold25 %All maps
Runaan's Hurricane item Runaan's Hurricane2600 Gold25 %All maps
Statikk Shiv item Statikk Shiv2600 Gold25 %All maps
Stormrazor item Stormrazor3200 Gold25 %All maps
Zeal item Zeal1400 Gold25 %All maps

Champion abilities

Critical strike chance as scaling

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

Champion abilities

Modifying critical strike damage

General

  • By default, critical strikes deal 200% of the normal damage (twice as much).
  • In most cases, critical strike damage Additive stacking icon stacks additively.
  • Damage modifiers apply to critical strike damage normally.

Champion abilities

Items

Guaranteed critical strikes

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

Champion abilities

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 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.

Exceptions

Others

Cosmetic critical strikes

Some abilities are displayed as a Critical strike icon critical strike under certain circumstances but do not interact with critical strike chance, Infinity Edge item Infinity Edge, or Randuin's Omen item Randuin's Omen. These are use for cosmetic purposes to indicate high amounts of, empowered, or otherwise significant damage on an ability.

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.
  • Some champions may actually use their critical strike animation for their empowered-basic attack if they ever activate a single-use on-hit effect, only it does not actually count as an actual critical strike.
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