Attack speed

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 (AS_base) is calculated using a hidden variable called attack delay, which ranges from −0.10 to 0.08. (AS_base) 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.
• Items
• Champion abilities
• The Fury mastery
• The Frenzy mastery
• Template:Rune runes

Bonus AS% stacks additively.

Example: Stinger grants +40% attack speed and 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:
  • 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'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 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 increasing his attack speed by 30%.
  • Let's say he has the Fury mastery up to 5%.
  • Let's also say he has 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

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Items

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Variable Availability

• Item availability needs updating. Template:Ile
• Summoner's Rift Template:Ile
• Twisted Treeline Template:Ile
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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's Blood Well passively increases his attack speed by % for every 2% in the Blood Well.
• Aatrox's Massacre increases his attack speed by 40 / 50 / 60% for 12 seconds.
• Azir's Shurima's Legacy passively increases his attack speed by 1.25% for every every 1% of his cooldown reduction.
• Blitzcrank's Overdrive increases his attack speed by 30 / 38 / 46 / 54 / 62% for 8 seconds.
• Diana's Moonsilver Blade passively grants Diana 20% bonus attack speed.
• Draven's Blood Rush increases his attack speed by 20 / 25 / 30 / 35 / 40% for 3 seconds.
• Elise's Skittering Frenzy increases the attack speed of herself and her Spiderlings by 60 / 80 / 100 / 120 / 140% for 3 seconds
• Evelynn's Ravage increases her attack speed by 60 / 75 / 90 / 105 / 120% for 3 seconds after attacking with Ravage.
• Ezreal's 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's Essence Flux increases the attack speed of allied champions it passes through by 20 / 25 / 30 / 35 / 40% for 5 seconds.
• Fiora's Burst of Speed increases her attack speed by 60 / 75 / 90 / 105 / 120% for 3 seconds.
• Gnar's Rage Gene increases his attack speed by (5.5 × Gnar's level) % when in Mini Gnar Mini Gnar.
• Graves' Quickdraw increases his attack speed by 30 / 40 / 50 / 60 / 70% for 4 seconds.
• Jarvan IV's 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.
• Jax's Relentless Assault causes his basic attacks to increase his attack speed by %. This bonus lasts for 2.5 seconds and stacks up to six times.
• Jayce's Hyper Charge increases his attack speed by 300% for three basic attacks.
• Jinx's 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%).
• Kog'Maw's Caustic Spittle passively increases his attack speed by 10 / 15 / 20 / 25 / 30%.
• Lee Sin's Flurry increases the attack speed by 40% of his next two 2 autoattacks within the next three seconds after casting an ability.
• Master Yi's Highlander increases his attack speed by 30 / 55 / 80% for 10 seconds. Kills and assists extends the duration by 4 second.
• Miss Fortune's Impure Shots increases her attack speed by 20 / 30 / 40 / 50 / 60% for 6 seconds.
• Nidalee's Primal Surge increases her or an allied unit's attack speed by 20 / 30 / 40 / 50 / 60% for 7 seconds.
• Nocturne's 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's Blood Boil increases an allied unit's and his own attack speed by 25 / 30 / 35 / 40 / 45% for 12 seconds.
• Olaf's Berserker Rage passively increases his attack speed by 1% per 1% health he is missing.
• Olaf's Vicious Strikes increases his attack speed by 40 / 50 / 60 / 70 / 80% for 6 seconds.
• Quinn's 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; passively grants Valor's attack speed by 40 / 50 / 60 / 70 / 80%.
• Rek'Sai's Void Rush passively grants her % bonus attack speed.
• Rengar's Empowered Savagery Empowered Savagery increases his attack speed by bonus 47 + (3 × Rengar's level) % for 5 seconds
• Sivir's On The Hunt On The Hunt passively grants her 40 / 60 / 80% attack speed while Sivir's Ricochet is active.
• Skarner's 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.
• Teemo's Camouflage increases his attack speed by 40% for 3 seconds after leaving his stealth state.
• Tristana's Rapid Fire increases her attack speed by 30 / 50 / 70 / 90 / 110% for 5 seconds.
• Trundle's 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's Stacked Deck passively increases his attack speed by 10 / 15 / 20 / 25 / 30%.
• Twitch's Ambush increases his attack speed by 30 / 40 / 50 / 60 / 70% for up to 5 seconds after revealing himself.
• Udyr's 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's Tiger Stance increases his attack speed by 30 / 40 / 50 / 60 / 70% for 5 seconds on activation.
• Varus' 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's 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's 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.
• Warwick's Hunters Call Hunters Call increases his attack speed by 40 / 50 / 60 / 70 / 80% and half of that amount to nearby allied champions for 10 seconds.
• Wukong's Nimbus Strike increases his attack speed by 30 / 35 / 40 / 45 / 50% after hitting a target with this skill.
• Xin Zhao's Battle Cry increases his attack speed by 40 / 50 / 60 / 70 / 80% for 5 seconds.

Masteries

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

Runes

• Template:Rune runes increase attack speed.

Name	Type	Tier 1 (Lesser)	Tier 2 (Normal)	Tier 3 (Greater)
Attack Speed	Mark	0.94% 30 Influence Point	1.32% 165 Influence Point	1.7% 410 Influence Point
	Seal	0.42% 30 Influence Point	0.59% 165 Influence Point	0.76% 410 Influence Point
	Glyph	0.35% 30 Influence Point	0.5% 165 Influence Point	0.64% 410 Influence Point
	Quintessence	2.52% 80 Influence Point	3.51% 410 Influence Point	4.5% 1025 Influence Point

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: Unique Aura: Reduces the attack speed of nearby enemies by 15%.
• Randuin's Omen: Unique Passive - Cold Steel: If you are hit by a basic attack, you slow the attacker's attack speed by 15%.
• 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: Active: Exhausts target enemy champion, reducing their attack and movement speed by 30%, reducing their damage dealt by 40% and armor and magic resist by 10 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's Glacial Storm slows affected units' attack speed by 20% for 1 second.
• Darius' Crippling Strike slows affected unit's attack speed by 20 / 25 / 30 / 35 / 40% for 2 seconds.
• Malphite's Ground Slam slows affected units' attack speed by 30 / 35 / 40 / 45 / 50% for 3 seconds.
• Nasus' 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's Absolute Zero slows the attack speed of all nearby enemy units by 25% while channeling for 3 seconds.
• Nunu's 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 Nunu's 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.
• Lucian's The Culling is the only ability so far to directly scale 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's Alpha Strike).

List of champions' attack speed

Main article: List of champions' attack speed

Champion statistics