A critical strike is a basic attack that deals twice its normal damage. In the real world, it's an attack striking a vulnerable area, while in other MMO and/or RPG settings, it ties into the very common "critical hit" mechanic.

It only applies to basic attacks or certain abilities like Gangplank Gangplank's Parrrley.png Parrrley and Yasuo Yasuo's Steel Tempest.png Steel Tempest that act like a basic attack or Garen Garen's Judgment.png Judgment and Master Yi Master Yi's Alpha Strike.png Alpha Strike, which are specially stated. It's important to note that you cannot score a Critical strike icon critical strike against a building such as a turret or inhibitor (Except Jhin Jhin, whose fourth shot receives minicrits against all structures).

Most champions have different attack animations for a Critical strike icon critical strike, though some do not; this includes mages and other champions not meant to be built using basic attacks for damage. Some of these champions performing a Critical strike icon 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.

Critical strike icon Critical strike is valuable for all champions who primarily deal damage with basic attacks, rather than through abilities. Some champions, such as Ashe Ashe, have an affinity for critical hits and benefit more from items that improve them. Players can increase the Chance and the Damage of Critical strike icon critical strikes with items, abilities, and runes.


Critical strike chance, as the name states, 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 (100% bonus damage), critical strike chance is essentially a damage multiplier where each 1% of critical chance adds 1% bonus 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, and is hard capped at 100%.

Critical strike chance has a theoretical gold value of Gold 40 per 1% critical strike chance. This makes Brawler's Gloves item.png Brawler's Gloves the most efficient core item for critical strike chance, as it grants +10% critical chance for the cost of Gold 400 with a Gold 40 per 1% critical chance efficiency. Note that Cloak of Agility item.png Cloak of Agility has the same efficiency.

Increasing critical strike chance


Item Cost Amount Availability
Brawler's Gloves item.png Brawler's Gloves400 Gold 10 %Common
Cloak of Agility item.png Cloak of Agility800 Gold 20 %Common
Essence Reaver item.png Essence Reaver3400 Gold 20 %Common
Infinity Edge item.png Infinity Edge3400 Gold 20 %Common
Phantom Dancer item.png Phantom Dancer2600 Gold 30 %Common
Rapid Firecannon item.png Rapid Firecannon2600 Gold 30 %Common
Runaan's Hurricane item.png Runaan's Hurricane2600 Gold 30 %Common
Statikk Shiv item.png Statikk Shiv2600 Gold 30 %Common
Zeal item.png Zeal1200 Gold 20 %Common

Temporary Effects

  • Zeke's Harbinger item.png Zeke's Harbinger: Passive: Unique: When within 1000-units of each other, you and your Conduit will generate 1 charge every second, up to 100, with a bonus 4 / 2 charges whenever you or your ally attack, and 8 / 4 on spell cast.
    At 100 charge, dealing damage grants you and your Conduit 20% increased AP and +50% flat critical strike chance for 8 seconds.
    All current charge is lost if you move further than 1000-units apart or hold onto 100 charge for longer than 5 seconds.

Champion abilities

Note: Any ability boosting attack speed has an indirect impact on the number of crits.

  • Fiora Fiora's Bladework.png Bladework grants her 100% critical chance on her next second attack.
  • Jhin Jhin's Whisper.png Whisper passively grants him 100% critical chance every fourth basic attack.
    • Curtain Call.png Curtain Call has a guaranteed 100% critical chance on its fourth and final shot.
  • Pantheon Pantheon's Certain Death.png Certain Death grants him 100% critical chance against targets below 15% of their maximum health.
  • Rengar Rengar's Thrill of the Hunt.png Thrill of the Hunt grants him 100% critical chance for his next basic attack against his closest target.
  • Shaco Shaco's Backstab.png Backstab passively grants him 100% critical chance for every basic attack striking an enemy unit from behind. This cannot happen on the same target more than once every 3 seconds.
  • Talon Talon's Noxian Diplomacy.png Noxian Diplomacy grants him 100% critical chance if he hits its target within a 170 range.
  • Tryndamere Tryndamere's Battle Fury.png Battle Fury grants him 0.35% critical chance per point of Fury he currently has.
  • Xin Zhao Xin Zhao's Battle Cry.png Battle Cry passively grants him 100% critical chance on every third basic attack.
  • Yasuo Yasuo's Way of the Wanderer.png Way of the Wanderer grants him twice the amount of critical chance.


Type Tier 3 % of Highest Price
Critical Strike Chance
Critc mark 3 Mark 0.93% 100% 410 IP
Critc seal 3 Seal 0.42% 45% 410 IP
Critc glyph 3 Glyph 0.28% 30% 410 IP
Critc quint 3 Quintessence 1.86% 67% 1025 IP


Critical strike damage refers to the amount of damage that a champion's Critical strike icon critical strike will deal. All champions have 200% critical strike damage by default, except Ashe Ashe with 110% damage, Jhin Jhin with 150% (reduced to 112% vs structures) and Yasuo Yasuo with 180%. In most cases, critical strike damage stacks additively. Damage modifiers apply to critical strike damage normally.

Modifying Critical Strike Damage

Champion Abilities
  • Fiora Fiora's Bladework.png Bladework modifies her base critical damage to 140 / 155 / 170 / 185 / 200% from the default of 200%.
  • Jhin Jhin's Whisper.png Whisper multiplicatively reduces his total critical damage by 25% for basic attacks.
  • Shaco Shaco's Backstab.png Backstab modifies his base critical damage to 120% - 145% (based on level) from the default of 200%.
  • Xin Zhao Xin Zhao's Battle Cry.png Battle Cry modifies his base critical damage to 125 / 137.5 / 150 / 162.5 / 175% from the default of 200%.
  • Yasuo Yasuo's Way of the Wanderer.png Intent multiplicatively reduces his total critical damage by 10% for basic attacks and 25% for Steel Tempest.png Steel Tempest (e.g. 200% to 190% / 175%).
  • Note: Ashe Ashe's Frost Shot.png Frost Shot does not modify the base critical damage. Instead, it does the following:
    • Only allows critical strikes on auto-attacks against targets affected by Frost Shot 2.png Frost.
    • Removes the randomness of critical strikes. It does so by simultaneously increasing the proc probability to 100% and reducing the extra damage on proc by the same multiplicative factor.
    • Adds straight 10% multiplicative bonus damage that is unrelated to critical strikes.


  • Infinity Edge item.png Infinity Edge: Passive: Unique: Critical strike bonus damage is increased by 50%.


Type Tier 3 % of Highest Price
Critical Strike Damage
Crit mark 3 Mark 2.23% 100% 820 IP
Crit seal 3 Seal 0.78% 35% 820 IP
Crit glyph 3 Glyph 0.56% 25% 820 IP
Crit quint 3 Quintessence 4.46% 67% 1025 IP


  • The maximum bonus critical strike damage obtainable is 95.51%, as follows:
  • For most champions, the maximum critical strike damage available is 200% for a total of amount of 295.51% AD on their Critical strike icon critical strikes.
    • Ashe Ashe with 100% critical strike chance will deal 305.51% AD on her Critical strike icon critical strikes thanks to her innate passive Frost Shot.png Frost Shot.

Skills affected by Critical Chance

Certain skills are capable of Critical strike icon critical strikes and/or are affected by critical chance.


Other skills that are not being affected by critical strikes and chances are displayed as a critical strike due to other reasons.

  • Affected by Critical strike damage
    • Fiora Fiora's Bladework.png Bladework: Causes next second auto-attack to deal increased damage, which is described as a Critical strike icon critical strike.
    • Shaco Shaco's Deceive.png Deceive: The next basic attack from behind a target within 2.5 seconds will deal increased damage and will be a Critical strike icon critical strike.
  • Unaffected by Critical strike damage
    • Anivia Anivia's Frostbite.png Frostbite: The 2 × damage modifier applied by being chilled by Flash Frost.png Flash Frost is given out as a Critical strike icon critical strike.
    • Fizz Fizz's Seastone Trident.png Seastone Trident: The triple damage dealt to a target that has been bleeding for more than 2 seconds is given out as a Critical strike icon critical strike.
    • Gnar Gnar's GNAR!.png GNAR!: The damage is given out as a Critical strike icon critical strike when enemy hits terrain.
    • Gragas Gragas' Barrel Roll.png Barrel Roll: The damage is given out as a Critical strike icon critical strike when the cask ferments after 2 seconds.
    • Karthus Karthus' Lay Waste.png Lay Waste: Appears as a Critical strike icon critical strike when acting like a single target spell (hitting only one enemy).
    • Kog'Maw Kog'Maw's Living Artillery.png Living Artillery: The double damage dealt to enemies under 40% of their maximum health is given out as a Critical strike icon critical strike.
    • LeBlanc LeBlanc's Sigil of Malice.png Sigil of Malice: When the sigil is shattered by Leblanc's next ability against the target, the combined damage of the sigil and the ability is given out as a Critical strike icon critical strike.
    • Nidalee Nidalee's Takedown.png Takedown: The 40% increased damage dealt to Prowl.png Hunted targets is given out as a Critical strike icon critical strike.
    • Pantheon Pantheon's Spear Shot.png Spear Shot: Will Critical strike icon critically strike for a +50% damage bonus due to the passive from Certain Death.png Certain Death if the target is under 15% health.
    • Ryze Ryze's Overload.png Overload: The extra damage applied to a target marked with Spell Flux.png Flux is given out as a Critical strike icon critical strike.
    • Vayne Vayne's Condemn.png Condemn: The double-damage applied by being knocked into a wall is given out as a Critical strike icon critical strike.
    • Vladimir Vladimir's Transfusion.png Transfusion: The extra damage applied when under the effect of Crimson Rush.png Crimson Rush is given out as a Critical strike icon critical strike.
    • Ziggs Ziggs' Satchel Charge.png Satchel Charge: The damage is given out as a Critical strike icon critical strike when used to hexplode a tower.


  • Similarly 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 form, 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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