Critical strike

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 spells like and  that act like a basic attack or, which is something unique.

Critical strike is valuable for all champions who primarily deal damage with automatic attacks, rather than through abilities. Some champions, such as, 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 basic attack dealing a critical strike. Critical strike chance stacks additively. Runes, items and abilities can increase critical strike chance.

When averaged over a large number of autoattacks 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 critical strike damage. Because of this, critical strike chance scales well with attack damage, in a similar fashion to attack speed.

The maximum critical strike chance you can reach at level 1 through masteries is, 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 gold per % crit chance efficiency.

Champion abilities
(Note that any ability boosting attack speed has an indirect impact on the number of crits)
 * gains 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.
 * grants him 100% critical strike chance against targets below 15% of their maximum health.
 * grants him 100% critical strike chance on his next attack, but for modified critical damage:.
 * passively increases his critical strike chance by per point of Fury he currently has.
 * doubles his critical strike chance, but the damage dealt by his critical strikes is reduced by 10%.

Runes

 * runes increase critical strike chance.

Damage
Critical strike damage refers to the amount of damage that a champion's critical strike will deal. By default, all champions will deal 200% damage (except Yasuo, who deals 180% damage) on critical strikes (100% bonus damage, and 80% bonus damage for Yasuo). Critical strike damage stacks additively. Damage modifiers, such as, stack multiplicatively with critical strikes.

Modifying Critical Strike Damage

 * Champion Abilities
 * modifies his base critical strike damage to % from the default of 200%.
 * reduces his total critical strike damage by 10% (e.g. 200% to 180%).

Runes

 * Runes
 * Marks: (primary)
 * Seals:
 * Glyphs:
 * Quintessences:

Skills affected by Critical Chance
Certain skills are capable of Critical Strikes and/or are affected by Critical Chance, however these skills may bound to certain limitations. E.g. will gain critical damage bonus only based on her attack damage, and the bonus damage part of the skill is not accounted.

Below is the list of skills that are capable and affected by critical strikes and chances.
 * : Only base attack damage component gain critical damage bonus.
 * : The entire damage including its bonus damage component can critically strike.
 * : Only bonus damage provided by your AD (ie: not base damage of Judgment) can critically strike.
 * : Only bonus damage provided by your AD (ie: not base damage of Decisive Strike) can critically strike.
 * : The additional shot is capable of critically striking like a normal auto attack.
 * : The additional strike is capable of critically striking like a normal auto attack.
 * : Only bonus damage provided by your AD can critically strike.
 * : The entire damage including its bonus damage component can critically strike.
 * : Only base attack damage component gain critical damage bonus and applied as magic damage.
 * : Only base attack damage component gains critical damage bonus.
 * : Damage bonus increases damage after critical modifier.
 * : Only applicable to first hit.
 * : Damage bonus increases damage after critical modifier.
 * : Only base attack damage component gain critical damage bonus.
 * : Cooldown is reduced by 1 second for every critical strike. This effect is doubled against champions.
 * : Only base attack damage component gain critical damage bonus.
 * : Only base attack damage component gains critical damage bonus.
 * : Only bonus damage provided by your AD (ie: not base damage of Steel Tempest) can critically strike.

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


 * : Although the 2x damage modifier applied by being chilled by is given out as critical strike, It is unaffected by critical damage modifiers such as.
 * : There is a known bug for the skill to critically strike, yet receive no critical damage. This may be due to the fact that it switches the entire damage into "bonus damage", and the skill itself allows critical strike to base on the attack damage portion only, which may lead to the current result of "Critically strikes without inflicting critical bonus damage.
 * : Will crit for a +50% damage bonus due to the passive from if the target is under 15% health, Although crit damage modifiers (such as) do not apply to this.
 * : Causes next auto-attack during the next 6 seconds to deal increased damage, which is described as a "Critical Strike", and is affected by any other modifier such as.
 * : The double-damage proc'd by being knocked into a wall is given out as critical strike, despite being unaffected by critical damage and critical strike.

Critical strike Kritische Treffer Golpe Crítico Coup critique Trafienie krytyczne 暴击