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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.

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

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 +50% attack speed and Nashor's Tooth item.png Nashor's Tooth also grants +50% attack speed, so the champion gains +100% 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.
    • \({0.625 \over (1 - 0.04)} = {0.625 \over 0.96} = 0.651041\overline6\). 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 \(3.22\% \times({7 \over 400}\times(18^2-1)+{267\over400}\times(18-1))=54.74\%\) 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: +50%.
    • All together he has: \(54.74\% + 30\% + 4\% + 50\% = 138.74\%\) bonus AS% or 1.3874 bonus AS as a decimal.
  • Final calculation:
    \(\begin{align} & {0.625 \over 0.96} + ({{0.625 \over 0.96} \times 138.74\%}) \\ =& 0.651041\overline6 + ({0.651041 \times 138.74\%}) \\ \approx & 1.55429 \end{align}\)
    • In game, the number will be shown as: 1.554.

Increasing attack speed

Items

  • 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.
  • Berserker's Greaves item.png Berserker's Greaves: +30% attack speed. Unique Passive – Enhanced Movement: +45 movement speed. 1100 Gold.
  • Blade of the Ruined King item.png Blade of the Ruined King: +40% attack speed, +25 attack damage, +10% life steal. Unique Passive: Basic attacks deal 6% of the target's current health as physical damage (60 max vs. minions). Unique Active: Deals 10% of target champion's maximum health (min. 100) as physical damage, heals for the same amount and steals 25% of the target's movement speed for 3 seconds (90 second cooldown) (550 range). 3400 Gold.
  • Dagger item.png Dagger: +12% attack speed. 300 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 8 times, melee attacks grant 2 stacks). While you have 8 stacks, you gain Guinsoo's Rage. +30 attack damage, +40 ability power. Unique Passive – Guinsoo's Rage: Basic attack deal 20 + (15% bonus AD) + (7.5% AP) bonus on-hit magic damage to the target and nearby units in a 385 range area of effect. 2800 Gold.
  • Kircheis Shard item.png Kircheis Shard: +15% attack speed. Passive: Moving and attacking will make an attack Energized. Unique Passive – Energized Strike: Your Energized attacks deal 30 bonus magic damage on hit. 750 Gold.
  • Maw of Malmortius item.png Maw of Malmortius: Unique Passive – Lifegrip: When Lifeline triggers, gain +25% attack speed, +10% spell vamp, and +10% life steal until out of combat. +55 attack damage, +50 magic resist, +10 armor penetration. Unique Passive – Lifeline: Upon taking magic damage that would reduce health below 30%, grants a shield that absorbs 300 + (100% bonus MR) magic damage for 5 seconds (90 second cooldown). 3250 Gold.
  • Nashor's Tooth item.png Nashor's Tooth: +50% attack speed, +80 ability power. Unique Passive: +20% cooldown reduction. Unique Passive: Basic attacks deal 15 + (15% AP) bonus magic damage on hit. 3000 Gold.
  • Phantom Dancer item.png Phantom Dancer: +45% attack speed, +30% critical strike chance, +5% movement speed. Unique Passive – Spectral Waltz: While within 500 units of an enemy champion you can see, +7% movement speed and you can move through units. Unique Passive – Lament: The last champion hit deals 12% less damage to you (ends after 10 seconds of not hitting). 2800 Gold.
  • Rapid Firecannon item.png Rapid Firecannon: +30% attack speed, +30% critical strike chance, +7% movement speed. Passive: Moving and attacking will make an attack Energized. Unique Passive – Firecannon: Your Energized attacks gain 35% bonus range (+150 range maximum) and deal 50 – 200 bonus magic damage on hit. 2600 Gold.
  • Recurve Bow item.png Recurve Bow: +25% attack speed. Unique Passive: Basic attacks deal an additional 15 physical damage on hit. 1000 Gold.
  • Runaan's Hurricane item.png Runaan's Hurricane: +40% attack speed, +30% critical strike chance, +7% movement speed. Unique Passive: When basic attacking, bolts are fire at up to 2 ennemies near the target, each dealing 25% AD physical damage. Bolts can critically strike and apply on hit effects. Unique Passive: Basic attacks deal an additional 15 physical damage on hit. 2600 Gold.
  • Statikk Shiv item.png Statikk Shiv: +35% attack speed, +30% critical strike chance, +5% movement speed. 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 30 – 100 bonus magic damage, increased to 66 – 220 against minions, that can spark to up to 4 additional nearby units. 2600 Gold.
  • Stinger item.png Stinger: +50% attack speed. Unique Passive: +10% cooldown reduction. 1200 Gold.
  • Trinity Force item.png Trinity Force: +15% attack speed, +250 health, +25 attack damage, +20% critical strike chance, +10% cooldown reduction, +5% movement speed, +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). 3800 Gold.
  • Wit's End item.png Wit's End: +40% attack speed, +40 magic resistance. Unique Passive: Your basic attacks deal 40 bonus magic damage. Unique Passive: Your basic attacks steal 5 magic resistance of the target for 5 seconds (stacks up to 5 times). 2800 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.
  • Zeal item.png Zeal: +15% attack speed, +20% critical strike chance, +5% movement speed. 1300 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). 2700 Gold.
  • ST Devourer item.png Devourer: +40% attack speed, +30 + (Devourer stacks) on-hit magic damage. Unique Passive – Devouring: Scoring a takedown (kill or assist) on a champion or large monster will grant 1 Devourer stack, 5 Devourer stacks for epic monsters, and 2 Devourer stacks for the Rift Scuttler. While stacking your Devourer, you are accompanied by a Ghost Dog who will grow with stacks. At 30 stacks, the Ghost Dog merges with the wielder and the Devourer transforms into Sated Devourer item.png Sated Devourer. 1400 Gold.
  • C Prospector's Blade item.png Prospector's Blade: +15% attack speed, +16 attack damage. Unique Passive – Prospector: +150 health. 950 Gold.
  • ST Sated Devourer item.png Sated Devourer: +40% attack speed, + 60 on-hit magic damage. Unique Passive – Phantom Hit: Every other basic attack will trigger a phantom attack that triggers all on hit effect a second time. Ranged champions trigger this every fourth attack. 1400 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 × Gnar's level) % when in Mini Gnar Mini Gnar.
  • Jarvan IV 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 by the same amount.
  • Jax Jax's Relentless Assault.png Relentless Assault causes his basic attacks to increase his attack speed by 4 - 14 (based on level)%. This bonus lasts for 2.5 seconds and stacks up to six times.
  • 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%).
  • Kog'Maw Kog'Maw's Caustic Spittle.png Caustic Spittle passively increases his attack speed by 15 / 20 / 25 / 30 / 35%.
  • 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.
  • Master Yi 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.
  • Miss Fortune Miss Fortune's Impure Shots.png Impure Shots increases her attack speed by 20 / 30 / 40 / 50 / 60% 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'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.
  • 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 8 / 11 / 14 / 17 / 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%.
  • Warlord's Bloodlust mastery 2016.png Warlord's Bloodlust increases your champion's attack speed by 30% for 4 seconds for each critical strike you hit against enemy champions (2 second cooldown).

Runes

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

GMarks (2)

0.94 %

5 IP

1.32 %

165 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 %

15 IP

3.51 %

100 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.
  • Malphite Malphite's Ground Slam.png Ground Slam slows affected units' attack speed by 30 / 35 / 40 / 45 / 50% for 3 seconds.
  • Nasus 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.
  • 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 8/12/2015 on patch 5.23]

The most attack speed a champion can reach at level 1 with 500 Gold and without any ally is 2.198245. This is only possible with Olaf Olaf.

Relevant mathematics:
Olaf Olaf Base AS = 0.694
Olaf Olaf Bonus AS = 9 × 1.7 + 8 × 0.64 + 9 × 0.76 + 3 × 4.5 + 4 + 20 + 12 + 99.99 + 40 = 216.75%
Olaf Olaf Total AD = 0.694 × 3.1675 = 2.198245


With the same set-up, but with level 1 allies (Ezreal Ezreal, Nidalee Nidalee, Nunu Nunu, and Warwick Warwick) the most attack speed a champion can reach at level 1 with 500 Gold is 2.5. This might be achievable with other champions than Olaf Olaf.

Relevant mathematics:
Olaf Olaf Base AS = 0.694
Olaf Olaf Bonus AS = 9 × 1.7 + 8 × 0.64 + 9 × 0.76 + 3 × 4.5 + 4 + 20 + 12 + 99.99 + 40 + 20 + 20 + 25 + 20 = 301.75%
Olaf Olaf Total AD = 0.694 × 4.0175 = 2.788145 changed to 2.5 in-game due to the attack speed cap.


References

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