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Attack speed

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Attack speed (often shortened as AS or ASPD) is the frequency at which a champion performs basic attacks and are displayed as "attacks per second." Attack speed caps at 2.5 attacks per second, or 1 attack every two fifths of a second (0.4 seconds).

Attack speed bonuses works by adding a percentage of a champion's base attack speed to his or her "base attack speed." Champions with a low base attack speed will receive less of an attack speed boost from the bonus than champions with a high base attack speed, but the proportional increase in DPS will remain the same for both. One's attack speed can be increased via leveling up, items, runes, masteries, buffs, and abilities. One's attack speed can only be decreased by certain items and abilities.

Calculations

Base attack speed

Every champion's base attack speed (ASbase) is calculated using a hidden variable called attack speed offset,[1] which ranges from −0.10 to 0.08. (ASbase) is the total number shown at level 1 without runes, masteries, etc. It is represented this way throughout the wiki.

$${\it AS}_{\rm base} = {0.625 \over 1 + {\it attack\ speed\ offset}}$$

Bonus attack speed sources

Bonus AS% stacks additively.

Example: Stinger item.png Stinger grants +40% attack speed and Nashor's Tooth item.png Nashor's Tooth grants +50% attack speed, so the champion gains +90% in total.

Notes:

  • Final attack speed cannot go above the cap of 2.5 attacks per second.
  • Many in-game tooltip percentages (such as runes) have been rounded, so results may be slightly different unless the precise numbers are known.

Example

  • Calculating base attack speed:
    • TwistedFateSquare.png Twisted Fate's attack delay is −0.04.
    • \({0.625 \over (1 - 0.04)} = {0.625 \over 0.96} = 0.651041\overline6\). This is TwistedFateSquare.png Twisted Fate's base attack speed, seen at level 1 (without runes, masteries, etc).
    • The number seen in game is rounded to 3 decimal places: 0.651.
  • Calculating "bonus attack speed":
    • Every time TwistedFateSquare.png Twisted Fate levels up, he gains 3.22\% as bonus AS%.
      • At level 18 he has gained \(3.22\% \times 17 = 54.74\%\) as bonus AS%.
    • At 18 he has maxed Stacked Deck.png Stacked Deck increasing his attack speed by 30%.
    • Let's say he has the Fury mastery s4.png Fury mastery up to 5%.
    • Let's also say he has Phantom Dancer item.png Phantom Dancer: +50%.
    • All together he has: \(54.74\% + 30\% + 5\% + 50\% = 139.74\%\) bonus AS% or 1.3974 bonus AS as a decimal.
  • Final calculation:
    \(\begin{align} & {0.625 \over 0.96}\times 239.74\% \\ =& 0.651041\overline6 \times 239.74\% \\ \approx & 1.56081 \end{align}\)
    • In game, the number will be shown as: 1.561.

Increasing attack speed

Items

  • Berserker's Greaves item.png Berserker's Greaves: +25% attack speed. Unique Passive - Enhanced Movement: +45 movement speed. 1000 gold.
  • Blade of the Ruined King item.png Blade of the Ruined King: +40% attack speed. +25 attack damage, +10% life steal. Unique Passive - Your attacks deal 8% of the target's current health in physical damage (60 max vs minions and monsters). Unique Active - Drains target champion, dealing 10% of the champion's maximum Health in physical damage (min. 100) and healing you by the same amount. Additionally you steal 25% of their movement speed for 3 seconds. 90 second cooldown and 450 range. 3200 gold.
  • Dagger item.png Dagger: +15% attack speed. 450 gold.
  • Guinsoo's Rageblade item.png Guinsoo's Rageblade: Passive: On cast or hit, you gain +4 ability power and +4% attack speed. This buff lasts for 8 seconds and stacks up to 8 times. Unique Passive: Falling below 50% health grants you 20% attack speed, 10% life steal, and 10% spell vamp until you exit combat. 30 second cooldown. +45 ability power, +35 attack damage. 2600 gold.
  • Nashor's Tooth item.png Nashor's Tooth: +50% attack speed, +60 ability power. Unique Passive: +20% cooldown reduction. Basic attacks deal 15 (+15% AP) bonus magic damage on hit. 2920 gold.
  • Phantom Dancer item.png Phantom Dancer: +50% attack speed, +30% critical chance, +5% movement speed. Unique Passive: Your champion ignores unit collision. 2800 gold.
  • Recurve Bow item.png Recurve Bow: +30% attack speed. 900 gold.
  • Runaan's Hurricane item.png Runaan's Hurricane: +70% attack speed. Unique Passive: Your basic attack fire minor bolts at 2 nearby targets, each dealing 10 (+50% AD). These apply on-hit effects. 2400 gold.
  • Statikk Shiv item.png Statikk Shiv: +40% attack speed, +20% critical chance, +6% movement speed. Unique Passive: Moving and attacking build Static Charges. At 100 Charges, your next attack expends the Charges to deal 100 magic damage to up to 4 targets. This damage can critically strike. 2500 gold.
  • Stinger item.png Stinger: +40% attack speed. Unique Passive: +10% cooldown reduction. 1250 gold.
  • Sword of the Divine item.png Sword of the Divine: +45% attack speed. Active: You gain 100% attack speed and 100% critical strike for 3 seconds or 3 critical strikes - 60 second cooldown. Passive: This item does not grant any attack speed while on cooldown. Champion kills reduce the current cooldown by half. 2150 gold.
  • Trinity Force item.png Trinity Force: +30% attack speed, +30 ability power, +30 attack damage, +10% critical strike chance, +250 health, +200 mana, +8% movement speed. 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. Unique Passive - Spellblade: After using an ability, your next basic attack deals bonus physical damage equal to 200% of your base attack damage. 1.5 second cooldown. 3703 gold.
  • Wit's End item.png Wit's End: +50% attack speed, +25 magic resistance. Unique Passive: On hit, you deal 42 magic damage and steal 5 magic resistance. This buff lasts for 5 seconds and stacks up to 5 times. 2500 gold.
  • Youmuu's Ghostblade item.png Youmuu's Ghostblade: Unique Active: Gain 40% attack speed and 20% movement speed for 6 seconds. +30 attack damage, +15% critical chance, +20 armor penetration, +10% cooldown reduction. 2700 gold.
  • Zeal item.png Zeal: +20% attack speed, +10% critical strike chance, +5% movement speed. 1100 gold.
  • Zephyr item.png Zephyr: +50% attack speed, +25 attack damage, +10% movement speed, +10% cooldown reduction. Unique Passive - Tenacity: The duration of stuns, slows, taunts, fears, silences, blinds, and immobilizes are reduced by 35%. 2850 gold.

Variable Availability

  • TC Dervish Blade item.png Dervish Blade: +50% attack speed, +45 magic resist, +10% cooldown reduction. Unique Active - Quicksilver: Removes all debuffs from your champion. Melee champions also gain +50% movement speed for 1 second. 90 second cooldown. 3000 gold.
  • S Feral Flare item.png Feral Flare: +30% attack speed, +12 attack damage. UNIQUE - MAIM: Champion kills, assists and large monsters slain will grant Feral stacks. Basic attacks deal 25 (+1 per Feral stack) bonus magic damage and restore 10 health. Minions and monsters take triple the bonus magic damage. Unique Passive - Gold Income: You may only be in possession of 1 Gold Income item. Unique Active: Places a Stealth Ward at target location that lasts for 180 seconds. 180 seconds cooldown (~1000 cast range). 1800 gold.
  • T Ichor of Rage item.png Ichor of Rage: On use, grants +20-40% attack speed (based on champion level), grants +20-40 attack damage (based on champion level) and 15% increased damage to Turrets for 3 minutes. 500 gold.
  • S Madred's Razors item.png Madred's Razors: +15% attack speed. Unique Passive - Maim: Basic attacks against monsters deal 60 bonus magic damage and restore 8 health. 775 gold.
  • C Prospector's Blade item.png Prospector's Blade: +15% attack speed, + 16 attack damage. Unique Passive - Prospector: +150 health. 950 gold.
  • S Wriggle's Lantern item.png Wriggle's Lantern: +30% attack speed, 12 attack damage. Unique Passive - Maim: Basic attacks against monsters deal 75 bonus magic damage and restore 10 health. UNIQUE: Gain 30% increased gold from monsters. Unique Passive - Gold Income: You may only be in possession of 1 Gold Income item. Unique Active: Places a Stealth Ward at target location that lasts for 180 seconds. 180 seconds cooldown (600 cast range). 1800 gold.

Champion abilities

Note: Only the attack speed buff effect of these abilities is shown here, to read more information on each of these abilities, follow the link on each of them.

  • AatroxSquare.png Aatrox's Blood Well.png Blood Well passively increases his attack speed by 0.6 / 0.7 / 0.8 / 0.9 / 1 / 1.1% for every 2% in the Blood Well.
  • AatroxSquare.png Aatrox's Massacre.png Massacre increases his attack speed by 40 / 50 / 60% for 12 seconds.
  • BlitzcrankSquare.png Blitzcrank's Overdrive.png Overdrive increases his attack speed by 30 / 38 / 46 / 54 / 62% for 8 seconds.
  • DianaSquare.png Diana's Moonsilver Blade.png Moonsilver Blade passively grants Diana 20% bonus attack speed.
  • DravenSquare.png Draven's Blood Rush.png Blood Rush increases his attack speed by 20 / 25 / 30 / 35 / 40% for 3 seconds.
  • EliseSquare.png Elise's Skittering Frenzy.png Skittering Frenzy increases the attack speed of herself and her Spiderlings by 60 / 80 / 100 / 120 / 140% for 3 seconds
  • EvelynnSquare.png Evelynn's Ravage.png Ravage increases her attack speed by 60 / 75 / 90 / 105 / 120% for 3 seconds after attacking with Ravage.png Ravage.
  • EzrealSquare.png Ezreal's Rising Spell Force.png Rising Spell Force passively increases his attack speed by 10% whenever he hits a target with any of his abilities. This bonus lasts for 5 seconds and stacks up to 5 times.
  • EzrealSquare.png Ezreal's Essence Flux.png Essence Flux increases the attack speed of allied champions it passes through by 20 / 25 / 30 / 35 / 40% for 5 seconds.
  • FioraSquare.png Fiora's Burst of Speed.png Burst of Speed increases her attack speed by 60 / 75 / 90 / 105 / 120% for 3 seconds.
  • GnarSquare.png Gnar's Rage Gene.png Rage Gene increases his attack speed by (5.5 × Gnar's level) % when in GnarSquare.png Mini Gnar.
  • GravesSquare.png Graves's Quickdraw.png Quickdraw increases his attack speed by 30 / 40 / 50 / 60 / 70% for 4 seconds.
  • JarvanIVSquare.png Jarvan IV's Demacian Standard.png Demacian Standard passively increases his attack speed by 10 / 13 / 16 / 19 / 22%. When activated, it throws a flag that increases nearby allied champions and his own attack speed again by the same amount.
  • JaxSquare.png Jax's Relentless Assault.png Relentless Assault causes his basic attacks to increase his attack speed by 4 / 6 / 8 / 10 / 12 / 14%. This bonus lasts for 2.5 seconds and stacks up to six times.
  • JayceSquare.png Jayce's Hyper Charge.png Hyper Charge increases his attack speed by 300% for three basic attacks.
  • JinxSquare.png Jinx's Pow-Pow, the Minigun.png Pow-Pow causes her basic attacks to increase her attack speed by 10 / 18.3 / 26.6 / 35 / 43.3%. This bonus lasts for 2.5 seconds and stacks up to three times(up to 30 / 55 / 80 / 105 / 130%).
  • KogMawSquare.png Kog'Maw's Caustic Spittle.png Caustic Spittle passively increases his attack speed by 10 / 15 / 20 / 25 / 30%.
  • LeeSinSquare.png Lee Sin's Flurry.png Flurry increases the attack speed by 40% of his next two 2 autoattacks within the next three seconds after casting an ability.
  • MasterYiSquare.png Master Yi's Highlander.png Highlander increases his attack speed by 30 / 55 / 80% for 10 seconds. Kills and assists extends the duration by 4 second.
  • MissFortuneSquare.png Miss Fortune's Impure Shots.png Impure Shots increases her attack speed by 20 / 30 / 40 / 50 / 60% for 6 seconds.
  • NidaleeSquare.png Nidalee's Primal Surge.png Primal Surge increases her or an allied unit's attack speed by 20 / 30 / 40 / 50 / 60% for 7 seconds.
  • NocturneSquare.png Nocturne's Shroud of Darkness.png Shroud of Darkness passively grants himself 20 / 25 / 30 / 35 / 40% attack speed. Upon activation, it summons a spell shield for 1.5 seconds, if the shield successfully blocks a spell, the attack speed bonus is doubled for 5 seconds.
  • NunuSquare.png Nunu's Blood Boil.png Blood Boil increases an allied unit's and his own attack speed by 25 / 30 / 35 / 40 / 45% for 12 seconds.
  • OlafSquare.png Olaf's Berserker Rage.png Berserker Rage passively increases his attack speed by 1% per 1% health he is missing.
  • OlafSquare.png Olaf's Vicious Strikes.png Vicious Strikes increases his attack speed by 40 / 50 / 60 / 70 / 80% for 6 seconds.
  • QuinnSquare.png Quinn's Heightened Senses.png Heightened Senses increases Quinn's attack speed by 20 / 25 / 30 / 35 / 40% for 3 seconds if she attacks a target that's marked by Harrier.png Harrier; passively grants ValorSquare.png Valor's attack speed by 40 / 50 / 60 / 70 / 80%.
  • RengarSquare.png Rengar's Empowered Savagery.png Empowered Savagery increases his attack speed by bonus 47 + (3 × Rengar's level) % for 5 seconds.
  • SionSquare.png Sion's Cannibalism.png Cannibalism increases his attack speed by 50% for 20 seconds.
  • SivirSquare.png Sivir's On The Hunt.png On The Hunt passively grants her 40 / 60 / 80% attack speed while SivirSquare.png Sivir's Ricochet.png Ricochet is active.
  • SkarnerSquare.png Skarner's Crystal Slash.png Crystal Slash increase his attack speed by 8 / 10 / 12 / 14 / 16% for 5 seconds that stacks up to 3 times when damaging an enemy champion with the ability.
  • TeemoSquare.png Teemo's Camouflage.png Camouflage increases his attack speed by 40% for 3 seconds after leaving his stealth state.
  • TristanaSquare.png Tristana's Rapid Fire.png Rapid Fire increases her attack speed by 30 / 45 / 60 / 75 / 90% for 7 seconds.
  • TrundleSquare.png Trundle's Frozen Domain.png Frozen Domain coats the target location with ice for 8 seconds, while on this area, Trundle increases his attack speed by 20 / 35 / 50 / 65 / 80%.
  • TwistedFateSquare.png Twisted Fate's Stacked Deck.png Stacked Deck passively increases his attack speed by 10 / 15 / 20 / 25 / 30%.
  • TwitchSquare.png Twitch's Ambush.png Ambush increases his attack speed by 30 / 40 / 50 / 60 / 70% for up to 5 seconds after revealing himself.
  • UdyrSquare.png Udyr's Monkey's Agility.png Monkey's Agility increases his attack speed by 10% upon switching stances. This bonus lasts for 5 seconds and stacks up to 3 times.
  • UdyrSquare.png Udyr's Tiger Stance.png Tiger Stance increases his attack speed by 30 / 40 / 50 / 60 / 70% for 5 seconds on activation.
  • VarusSquare.png Varus's Living Vengeance.png Living Vengeance increases attack speed by 20% for 3 seconds on minion kills, while a champion kill/assist will grant 40% for 6 seconds.
  • ViSquare.png Vi's Denting Blows.png Denting Blows will increase Vi's attack speed by 30 / 35 / 40 / 45 / 50% for 4 seconds after attacking the same target 3 times.
  • VolibearSquare.png Volibear's Frenzy.png Frenzy passively causes his autoattacks to increase his attack speed by 8 / 11 / 14 / 17 / 20%. This bonus stacks up to 3 times and lasts for 4 seconds.
  • WarwickSquare.png Warwick's Hunter's Call.png Hunters Call increases his attack speed by 40 / 50 / 60 / 70 / 80% and half of that amount to nearby allied champions for 10 seconds.
  • WukongSquare.png Wukong's Nimbus Strike.png Nimbus Strike increases his attack speed by 30 / 35 / 40 / 45 / 50% after hitting a target with this skill.
  • XinZhaoSquare.png Xin Zhao's Battle Cry.png Battle Cry increases his attack speed by 40 / 50 / 60 / 70 / 80% for 5 seconds.

Masteries

  • Fury mastery s4.png Fury increases your champion's attack speed by 1.25 / 2.5 / 3.75 / 5%.
  • Frenzy mastery s4.png Frenzy grants 5% attack speed to your champion for 3 seconds after landing a critical hit. This bonus stacks up to 3 times.

Runes

Name Type Tier 1 (Lesser) Tier 2 (Normal) Tier 3 (Greater)
Attack Speed Mark

GMarks (2)

0.94%

30 IP

1.32%

165 IP

1.7%

410 IP

Seal

Seals (3)

0.42%

30 IP

0.59%

165 IP

0.76%

410 IP

Glyph

Glyphs (3)

0.35%

30 IP

0.5%

165 IP

0.64%

410 IP

Quintessence

Quintessences (3)

2.52%

80 IP

3.51%

410 IP

4.5%

1025 IP

Reducing attack speed

Note: Attack speed reductions stack multiplicatively and take percentages off the final attack speed value after all bonus attack speed has been factored in.

Items

  • Frozen Heart item.png Frozen Heart: Unique Aura: Reduces the attack speed of nearby enemies by 15%.
  • Randuin's Omen item.png Randuin's Omen: Unique Passive - Cold Steel: If you are hit by a basic attack, you slow the attacker's attack speed by 10%.
  • Warden's Mail item.png Warden's Mail: Unique Passive - Cold Steel: If you are hit by a basic attack, you slow the attacker's attack speed by 10% for 1.5 seconds.

Summoner Spells

  • Exhaust.png Exhaust: Active: Exhausts target enemy champion, reducing their attack and movement speed by 30% for 2.5 seconds and reducing their damage dealt by 50% for the duration. 

Champion abilities

Note: Only the attack speed reduction effect of these abilities is shown here, to read more information on each of these abilities, follow the link on each of them.

  • AniviaSquare.png Anivia's Glacial Storm.png Glacial Storm slows affected units' attack speed by 20% for 1 second.
  • DariusSquare.png Darius's Crippling Strike.png Crippling Strike slows affected unit's attack speed by 20 / 25 / 30 / 35 / 40% for 2 seconds.
  • MalphiteSquare.png Malphite's Ground Slam.png Ground Slam slows affected units' attack speed by 30 / 35 / 40 / 45 / 50% for 3 seconds.
  • NasusSquare.png Nasus's Wither.png Wither reduces an enemy unit's attack speed by 17.5% plus an additional 1.5 / 3 / 4.5 / 6 / 7.5% per second for 5 seconds.
  • NunuSquare.png Nunu's Absolute Zero.png Absolute Zero slows the attack speed of all nearby enemy units by 25% while channeling for 3 seconds.
  • NunuSquare.png Nunu's Ice Blast.png Ice Blast reduces an enemy unit's attack speed by 25% for 3 seconds.

Notes

  • All percentages listed in a champion's attack speed statistic are approximations.
  • Attack speed reduction duration is not affected by crowd control reduction. However if attack speed reduction is in one ability with crowd control like NunuSquare.png Nunu's Ice Blast.png Ice Blast, then the crowd control reduction reduces its duration. So attack speed reduction is reduced by the effect only along with other crowd control. This has been changed with Patch 3.13, as Attack Speed Reductions are now counted as Slows.
  • LucianSquare.png Lucian's The Culling.png The Culling is the only ability so far that scales off attack speed.

List of champions' attack speed

References

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