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Attack speed

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Attack speed (often shortened as AS or ASPD) is the frequency of a champion's basic attacks. They are measured and displayed as attacks per second.
  • Attack speed cannot be increased beyond 2.5 attacks per second (or 1 attack every two fifths of a second, or 0.4 seconds).

Attack speed bonuses (from items or abilities, etc.) are in percent. The bonus is a percentage of the champions base attack speed. Therefore, champions with higher base attack speed benefit more from attack speed increases. Like all stats, one's attack speed can be increased via leveling up, items, runes, masteries, buffs, and abilities. Some items and abilities (only those two) decrease enemy attack speed.

Calculations

Base attack speed

Every champion's base attack speed (ASbase) is calculated using a hidden variable called attack delay,[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.

\pagecolor{Black}\color{White}{\it AS}_{\rm base} = {0.625 \over 1 + {\it attack\ delay}}

Bonus attack speed sources

  • Champions gain AS% at each level, not including level 1. This amount ranges from roughly 0% to 4% and depends on the champion. This amount depends on the level through the Statistics growth formula.
  • Items
  • Champion abilities
  • Masteries
  • Attack Speed runes

Bonus AS% stacks additively.

Example: Stinger item.png Stinger grants +35% attack speed and Nashor's Tooth item.png Nashor's Tooth also grants +50% attack speed, so the champion gains +85% 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:
    • Twisted Fate Twisted Fate's attack delay is −0.04.
    • \pagecolor{Black}\color{White}{0.625 \over (1 - 0.04)} = {0.625 \over 0.96} = 0.651041 \overline{6}. This is Twisted Fate 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 Twisted Fate Twisted Fate levels up, he gains bonus AS% based on percentage growth 3.22% and his level through the Statistics growth formula.
      • At level 18 he has gained \pagecolor{Black}\color{White}3.22\% \times\left({7 \over 400}\times(18^2-1)+{267\over400}\times(18-1)\right)=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 2016.png Fury mastery up to 4%.
    • Let's also say he has Stinger item.png Stinger: +35%.
    • All together he has: 54.74% + 30% + 4% + 35% = 123.74% bonus AS% or 1.2374 bonus AS as a decimal.
  • Final calculation:
    \pagecolor{Black}\color{White}\begin{align} & {0.625 \over 0.96} + \left({{0.625 \over 0.96} \times 123.74\%}\right) \\ =& 0.651041\overline6 + ({0.651041 \times 123.74\%}) \\ \approx & 1.45664 \end{align}
    • In game, the number will be shown as: 1.457.

Increasing attack speed

Items

Item Cost Amount Availability
Berserker's Greaves item.png Berserker's Greaves1100 Gold35 %Common
Blade of the Ruined King item.png Blade of the Ruined King3400 Gold40 %Common
Bloodrazor item.png Bloodrazor1625 Gold50 %Classic
Dagger item.png Dagger300 Gold12 %Common
Kircheis Shard item.png Kircheis Shard750 Gold15 %Common
Nashor's Tooth item.png Nashor's Tooth3000 Gold50 %Common
Phantom Dancer item.png Phantom Dancer2550 Gold45 %Common
Prospector's Blade item.png Prospector's Blade950 Gold15 %Crystal Scar
Rapid Firecannon item.png Rapid Firecannon2600 Gold30 %Common
Recurve Bow item.png Recurve Bow1000 Gold25 %Common
Runaan's Hurricane item.png Runaan's Hurricane2600 Gold40 %Common
Statikk Shiv item.png Statikk Shiv2600 Gold35 %Common
Stinger item.png Stinger1100 Gold35 %Common
Trinity Force item.png Trinity Force3733 Gold40 %Common
Typhoon Claws item.png Typhoon Claws2000 Gold20 %Black Market Brawlers
Wit's End item.png Wit's End2500 Gold40 %Common
Zeal item.png Zeal1300 Gold15 %Common
  • Ardent Censer item.png Ardent Censer: Unique Passive: Your heals and shields on another unit grant them 15% attack speed and 30 magic damage on-hit for 6 seconds
    . +40 ability power, +100% base mana regeneration, +10% cooldown reduction. Unique Passive: +8% movement speed. 2200 Gold
  • Guinsoo's Rageblade item.png Guinsoo's Rageblade: Passive: Basic attacks grant +8% attack speed, +3 attack damage, and +4 ability power for 5 seconds (stacks up to 6 times). While you have 6 stacks, you gain Guinsoo's Rage
    . +35 attack damage, +50 ability power. Unique Passive: Basic attacks deal an additional 15 magic damage on-hit. Unique Passive – Guinsoo's Rage: Every other basic attack will trigger on-hit effects an addtional time. 3600 Gold
  • Youmuu's Ghostblade item.png Youmuu's Ghostblade: Unique Active: Grants +20% movement speed and +40% attack speed for 6 seconds (45 second cooldown)
    . +65 attack damage, +10% cooldown reduction. Unique Passive: +20 armor penetration. 3200 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.

  • Aatrox Aatrox's Blood Well.png Blood Well passively increases his attack speed by 0.6 - 1.1 (based on level)% for every 2% in the Blood Well.
    • Aatrox Aatrox's Massacre.png Massacre increases his attack speed by 40 / 50 / 60% for 12 seconds.
  • Blitzcrank Blitzcrank's Overdrive.png Overdrive increases his attack speed by 30 / 38 / 46 / 54 / 62% for 5 seconds.
  • Diana Diana's Moonsilver Blade.png Moonsilver Blade passively grants Diana 20% bonus attack speed.
  • Draven Draven's Blood Rush.png Blood Rush increases his attack speed by 20 / 25 / 30 / 35 / 40% for 3 seconds.
  • Elise 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.
  • Evelynn Evelynn's Ravage.png Ravage increases her attack speed by 60 / 75 / 90 / 105 / 120% for 3 seconds after attacking with Ravage.png Ravage.
  • Ezreal 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 6 seconds and stacks up to 5 times.
    • Ezreal 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.
  • Fiora Fiora's Bladework.png Bladework increases her attack speed by 50% for her 2 next basic attacks.
  • Gnar Gnar's Rage Gene.png Rage Gene increases his attack speed by 5.5 - 99 (based on level)% when in Mini Gnar Mini Gnar.
    • Gnar Gnar's Hyper.png Hyperincreases his attack speed by 20 / 30 / 40 / 50 / 60% for 3 seconds.
  • Jarvan IV Jarvan IV's Demacian Standard.png Demacian Standard passively increases his attack speed by 15 / 17.5 / 20 / 22.5 / 25%. When activated, it throws a flag that increases nearby allied champions and his own attack speed by the same amount.
  • Jax Jax's Relentless Assault.png Relentless Assault causes his basic attacks to increase his attack speed by 3.5 - 11 (based on level)%. This bonus lasts for 2.5 seconds and stacks up to eight times, falling off one stack at a time every 0.25 seconds.
  • Jayce Jayce's Hyper Charge.png Hyper Charge increases his attack speed to 2.5 for three basic attacks.
  • Jinx Jinx's Pow-Pow, the Minigun.png Pow-Pow causes her basic attacks to grant bonus attack speed for 2.5 seconds, stacking up to three times (up to 30 / 40 / 50 / 60 / 70%).
    • Jinx Jinx's Get Excited!.png Get Excited! grants her 15% total attack speed for 6 seconds whenever an enemy champion or structure dies within 3 seconds of being damaged by her.
  • Kled Kled's Violent Tendencies.png Violent Tendencies makes him periodically enter a frenzy that grants him 150% bonus attack speed on his next 4 attacks for 4 seconds.
  • Kog'Maw Kog'Maw's Bio-Arcane Barrage.png Bio-Arcane Barrage passively increases his attack speed by 15 / 20 / 25 / 30 / 35%, and, upon activation and for 6 seconds, double his total attack speed.
  • Lee Sin 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.
  • Lulu Lulu's Whimsy.png Whimsy casts erratic magic upon the target champion, giving them 25 / 30 / 35 / 40 / 45% bonus attack speed for the next few seconds if they are an ally.
  • Master Yi Master Yi's Highlander.png Highlander increases his attack speed by 30 / 55 / 80% for 7 seconds. Kills and assists extends the duration by 7 seconds.
  • Miss Fortune Miss Fortune's Strut.png Strut increases her attack speed by 40 / 55 / 70 / 85 / 100% for 6 seconds.
  • Nidalee 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.
  • Nocturne 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.
  • Nunu 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.
  • Olaf Olaf's Berserker Rage.png Berserker Rage passively increases his attack speed by 1% per 1% health he is missing.
  • Quinn Quinn's Heightened Senses.png Heightened Senses increases Quinn's attack speed by 20 / 25 / 30 / 35 / 40% for 3 seconds when she attacks a target marked by Harrier.png Harrier.
  • Rek'Sai Rek'Sai's Void Rush.png Void Rush passively grants her 20 / 40 / 60% bonus attack speed.
  • Rengar Rengar's Empowered Savagery.png Empowered Savagery increases his attack speed by bonus 47 + (3 × Rengar's level) % for 5 seconds
  • Sivir Sivir's On The Hunt.png On The Hunt passively grants her 40 / 60 / 80% attack speed while Sivir Sivir's Ricochet.png Ricochet is active.
  • Teemo Teemo's Camouflage.png Camouflage increases his attack speed by 20 / 40 / 60 / 80% for 3 seconds after leaving his stealth state.
  • Tristana Tristana's Rapid Fire.png Rapid Fire increases her attack speed by 30 / 50 / 70 / 90 / 110% for 5 seconds.
  • Trundle 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%.
  • Twisted Fate Twisted Fate's Stacked Deck.png Stacked Deck passively increases his attack speed by 10 / 15 / 20 / 25 / 30%.
  • Twitch Twitch's Ambush.png Ambush increases his attack speed by 30 / 40 / 50 / 60 / 70% for up to 5 seconds after revealing himself.
  • Udyr 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.
    • Udyr Udyr's Tiger Stance.png Tiger Stance increases his attack speed by 30 / 40 / 50 / 60 / 70% for 5 seconds on activation.
  • Varus Varus' 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.
  • Vi 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.
  • Volibear Volibear's Frenzy.png Frenzy passively causes his auto attacks to increase his attack speed by 4 / 8 / 12 / 16 / 20%. This bonus stacks up to 3 times and lasts for 4 seconds.
  • Warwick 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 6 seconds.
  • Wukong Wukong's Nimbus Strike.png Nimbus Strike increases his attack speed by 30 / 35 / 40 / 45 / 50% after hitting a target with this skill.
  • Xin Zhao Xin Zhao's Battle Cry.png Battle Cry increases his attack speed by 40 / 50 / 60 / 70 / 80% for 5 seconds.

Masteries

  • Fury mastery 2016.png Fury increases your champion's attack speed by 0.8 / 1.6 / 2.4 / 3.2 / 4%.

Runes

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

GMarks (2)

0.94 %

N/A

1.32 %

1 IP

1.7 %

410 IP

Seal

GSeals (3)

X X 0.76 %

410 IP

Glyph

GGlyphs (3)

X X 0.64 %

410 IP

Quintessence

GQuintessences (3)

2.52 %

N/A

3.51 %

1 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 15% for 1 second.
  • 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 15% for 1 second.

Summoner Spells

  • Exhaust.png Exhaust: Active: Exhausts target enemy champion, reducing their movement speed and attack speed by 30%, their armor and magic resist by 10, and their damage dealt by 40% for 2.5 seconds.

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.

  • Anivia Anivia's Glacial Storm.png Glacial Storm slows affected units' attack speed by 20% for 1 second.
  • Fiora Fiora's Riposte.png Riposte slows affected enemy champion's attack speed by 50% for 1.5 seconds.
  • Malphite Malphite's Ground Slam.png Ground Slam slows affected units' attack speed by 30 / 35 / 40 / 45 / 50% for 3 seconds.
  • Nasus Nasus' 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.
  • Nunu Nunu's Absolute Zero.png Absolute Zero slows the attack speed of all nearby enemy units by 25% while channeling for 3 seconds.
    • Nunu Nunu's Ice Blast.png Ice Blast reduces an enemy unit's attack speed by 25% for 3 seconds.

Notes

Yasuo Yasuo's Steel Tempest.png Steel Tempest (bonus attack speed only) is the only ability that directly scales with a champion's attack speed statistic. Many other abilities can scale indirectly (for example, through the flat cooldown reduction per attack with Master Yi Master Yi's Alpha Strike.png Alpha Strike).

List of champions' attack speed

The highest and lowest base attack speed champions
Champion Level Top 5 champions Bottom 5 champions
Level 1 1. Akali Akali 0.694 AS 1. Graves Graves 0.481 AS
1. Kalista Kalista
1. Maokai Maokai
1. Olaf Olaf
1. Shaco Shaco
2. Kennen Kennen 0.69 AS 2. Caitlyn Caitlyn 0.568 AS
2. Teemo Teemo
3. Draven Draven 0.679 AS 3. Illaoi Illaoi 0.571 AS
3. Master Yi Master Yi
3. Rengar Rengar
3. Sion Sion
3. Twitch Twitch
3. Warwick Warwick
4. Fiora Fiora 0.672 AS 4. Annie Annie 0.579 AS
4. Xin Zhao Xin Zhao
5. Hecarim Hecarim 0.67 AS 5. Mordekaiser Mordekaiser 0.601 AS
5. Sejuani Sejuani
5. Trundle Trundle
5. Tryndamere Tryndamere
Level 18 1. Vayne Vayne 1.105 AS 1. Gnar Gnar 0.678 AS
2. Kennen Kennen 1.089 AS 2. Annie Annie 0.712 AS
3. Teemo Teemo 1.087 AS 3. Nautilus Nautilus 0.717 AS
4. Twitch Twitch 1.07 AS 4. Graves Graves 0.731 AS
5. Akali Akali 1.06 AS 5. Bard Bard 0.731 AS
5. Darius Darius
5. Jinx Jinx

Trivia

Last updated: September 7, 2016 – V6.17


  • Kog'Maw Kog'Maw bonus AS for the cap = 5 ÷ (Bio-Arcane Barrage.png 2 × 0.625) = 4 = 300% bonus AS


References

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