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Critical strike

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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 automatic 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.

Chance

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 × 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 40 gold Gold 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 400 gold Gold with a 40 gold Gold per 1% critical chance efficiency. Note that Cloak of Agility item.png Cloak of Agility has the same efficiency.

Increasing critical strike chance

Items

  • Essence Reaver item.png Essence Reaver: +20% critical strike chance

    , +65 attack damage. Unique Passive - +10% Cooldown Reduction. Unique Passive - Gain up to +20% additional Cooldown Reduction equal to your critical chance from other sources. Unique Passive - critical strike restore 3% of your maximum mana.
    3600Gold
    .
  • Phantom Dancer item.png Phantom Dancer: +30% critical strike chance

    , +45% attack speed, +5% movement speed. Unique Passive - Spectral Waltz: While within 500 units of a visible enemy champion, you are Ghost ghosted and gain 7% bonus movement speed. Unique Passive Lament: You take 12% reduced damage from the last enemy champion you hit, lingering for 10 seconds after your last hit.
    2550Gold
    .
  • Rapid Firecannon item.png Rapid Firecannon: +30% critical strike chance

    , +30% attack speed, +5% movement speed. Unique Passive - Energize: Moving and using basic attacks Energize you. When fully Energized, gain Firecannon. Unique Passive - Firecannon: Your next basic attack gains 35% increased range, up to a maximum of +150 range and deals 50 - 160 (based on level) bonus on-hit magic damage. Firecannon can be used on structures.
    2600Gold
    .
  • Runaan's Hurricane item.png Runaan's Hurricane: +30% critical strike chance

    , +40% attack speed, +7% movement speed. Unique Passive - +15 on-hit physical damage. Unique Passive - Wind's Fury: When Basic attacking, bolts are fired at up to 2 enemies near the target, each dealing 25% AD physical damage. Bolts can Critical strike icon critically strike and apply on-hit effects.
    2600Gold
    .
  • Statikk Shiv item.png Statikk Shiv: +30% critical strike chance

    , +35% attack speed, +5% movement speed. Unique Passive - Energize: Moving and using basic attacks Energize you. When fully Energized, gain Shiv Lightning. Unique Passive - Shiv Lightning: Your next basic attack (on-hit) deals 50 - 120 (based on level) bonus magic damage, increased to 110 - 264 (based on level) against minions, that can spark to up to 4 additional nearby units. This damage can Critical strike icon critically strike and scales with critical damage.
    2600Gold
    .
  • Trinity Force item.png Trinity Force: +20% critical strike chance

    , +25 attack damage, +15% attack speed, +5% movement speed, +10% cooldown reduction, +250 health, +250 mana. Unique Passive – Rage: Basic attacks grant 20 movement speed for 2 seconds on hit. Minion, monster, and champion kills grant 60 movement speed for 2 seconds. This movement speed bonus is halved for ranged champions. Unique Passive – Spellblade: After using an ability, the next basic attack deals 200% base AD bonus physical damage (1.5 second cooldown).
    3800Gold
    .
  • Zeal item.png Zeal: +20% critical strike chance

    , +15% attack speed, Unique Passive: +5% movement speed.
    1300Gold
    .


Variable Availability

  • SH Infinity Edge item.png Infinity Edge: +20% critical strike chance

    , +65 attack damage. Unique Passive: +50% critical strike damage.
    3600Gold
    .
  • TC Lord Van Damm's Pillager item.png Lord Van Damm's Pillager: +30% critical strike chance

    , +65 attack damage. Unique Passive: Critical strikes cause enemies to bleed for an additional 150% of bonus AD as magic damage over 3 seconds and reveal them for the duration.
    3600Gold
    .
  • CH The Lightbringer item.png The Lightbringer: +30% critical strike chance

    , +30 attack damage. Unique Passive: Critical strikes cause ennemies to bleed for 90% of bonus AD as magic damage over 3 seconds and reaveal them for the duration. Unique Passive – Trap Detection: Nearby stealthed enemy traps are revealed. Unique Active – Hunter's Sight: A stealth-detecting mist grants vision in the target area for 5 seconds, revealing enemy champion that enter for 3 seconds (60 second cooldown).
    2350Gold
    .
  • TCH Wicked Hatchet item.png Wicked Hatchet: +10% critical strike chance

    , +20 attack damage. Unique Passive: Critical strikes cause your target to bleed for an additional 60% of bonus AD as magic damage over 3 seconds.
    1200Gold
    .


Temporary Effects

  • Zeke's Harbinger item.png Zeke's Harbinger: +50% critical strike chance for 8 seconds

    , +30 armor, +250 mana, +50 ability power, +10% cooldown reduction. Unique Passive - 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 Ability Power and +50% 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. Unique Active – Conduit: Bind to target ally. This will remove all other Conduits on your target (60 seconds cooldown).
    2350Gold
    .


Champion abilities

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

Runes

Name Type Tier 1 (Lesser) Tier 2 (Normal) Tier 3 (Greater)
Critical Chance Mark

GMarks (2)

X X 0.93 %

410 IP

Seal

GSeals (3)

X X 0.42 %

410 IP

Glyph

GGlyphs (3)

X X 0.28 %

410 IP

Quintessence

GQuintessences (3)

X X 1.86 %

1025 IP

Damage

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% (further reduced 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
  • Ashe Ashe's Frost Shot.png Frost Shot modifies her base critical damage to 110% + (Critical Chance × (1 + Bonus Critical Damage))
  • 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 Deceive.png Deceive modifies his base critical damage to 140 / 160 / 180 / 200 / 220% 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%).

Items

  • SH Infinity Edge item.png Infinity Edge: Unique Passive: +50% critical strike damage

    . +65 attack damage, +20% critical strike chance.
    3600Gold
    .


Runes

Name Type Tier 1 (Lesser) Tier 2 (Normal) Tier 3 (Greater)
Critical Damage

(% of Attack Damage; additive with Infinity Edge item.png Infinity Edge, Fiora Fiora's Bladework.png Bladework, Shaco Shaco's Deceive.png Deceive and Xin Zhao Xin Zhao's Battle Cry.png Battle Cry)

Mark

GMarks (1)

X X 2.23 %

820 IP

Seal

GSeals (1)

X X 0.78 %

820 IP

Glyph

GGlyphs (1)

X X 0.56 %

820 IP

Quintessence

GQuintessences (1)

X X 4.46 %

1025 IP

Notes

  • The maximum bonus critical strike damage obtainable is as follows:
    • Runes: 45.51%
    • Items: 50%
  • 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.
    • Including the additional 20% base critical strike damage from rank-5 Deceive.png Deceive, and his innate passive Backstab.png Backstab, Shaco Shaco's will deal 335.51% AD on his Critical strike icon critical strike.
    • Ashe Ashe with 100% critical strike chance will deal 328.265% 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.

Miscellaneous

Other skills that are not be affected by critical strikes and chances, 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: Causes next auto-attack during the next 6 seconds to deal increased damage, which is described as a Critical strike icon critical strike.
    • Pantheon Pantheon's Spear Shot.png Spear Shot: Will Critical strike icon critical strike for a + 100% damage bonus due to the passive from Certain Death.png Certain Death if the target is under 15% health.
  • 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 Critical strike icon critical strike.
    • Gangplank Gangplank's Powder Keg.png Powder Keg: The damage is always given out as Critical strike icon critical strike.
    • Gnar Gnar's GNAR!.png GNAR!: The damage is given out as Critical strike icon critical strike when enemy hits terrain.
    • Gragas Gragas's Barrel Roll.png Barrel Roll: The damage is given out as Critical strike icon critical strike when the cask ferments after 2 seconds.
    • Karthus Karthus's Lay Waste.png Lay Waste: Appears like a Critical strike icon critical strike when acting like a single target spell (hitting only one enemy).
    • Miss Fortune Miss Fortune's Double Up.png Double Up: The second damage is given out as Critical strike icon critical strike when the first target is killed.
    • Soraka Soraka's Starcall.png Starcall: The damage is given out as Critical strike icon critical strike when enemy stands in the center.
    • Vayne Vayne's Condemn.png Condemn: The double-damage applied by being knocked into a wall is given out as Critical strike icon critical strike.


Trivia

  • 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.


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