Modifies melee animation speed. The number of attacks per second varies by weapon type and Stance.—In-game Description Attack Speed is a statistic that modifies how fast a melee's attack animation plays. True attack speed, the rate at which melee weapons attack, is derived from three attributes: The attack animation for the given weapon class and the Stance they have equipped The weapon's listed attack speed multiplier (aka Attack Speed) Attack Speed bonuses/penalties from sources like mods or abilities Mechanics[] Each general melee class follows a standard attack animation which controls baseline striking speed. Polearms have a slower standard attack animation than the swords, for example. Specific weapons (such as the  Cronus of the sword type) each have their own base attack speed multiplier which alters the rate of the attack animation. An Attack Speed of 1.0 runs its attacks at default speed. An Attack Speed of 1.2 executes 20% faster, while a speed of 0.8 runs 20% slower. Attack Speed is then further increased (or decreased) by Attack Speed mods and ability buffs, giving us the following basic equation: Where Base Attack Animation Length is based on the time it takes to complete an attack at Attack Speed of 1.0 Recall that attack animations vary between weapon types. Despite the  Fragor (Hammer) and  Karyst (Dagger) both having listed speeds of 0.8, the Karyst's actual speed is faster than the Fragor's due to daggers having a faster attack animation. Faster attack speeds enhance a melee weapon's overall damage potential and utility by: Changes in Attack Speed apply to finishers, as well as the animation of heavy attacks but not the actual wind-up time (i.e. initial heavy attack charging animation will stay the same but the actual heavy attack swing will be sped up/slowed down). Weapons with ranged charge mechanics such as the  Glaive and  Redeemer are not affected by Attack Speed and uses Heavy Attack Wind-Up Speed bonuses instead. All base weapon Attack Speeds are in fractions of X / 60. This means despite Attack Speed values listed in the UI, the true values have longer repeating decimals as they are represented as floating point integers. Attack Speed Mods[] The following Mods affect Attack Speed positively, increasing a Melee Weapon's rate of attack: The following Mods affect Attack Speed negatively, reducing rate of attack: Attack Speed Abilities[] The following abilities affect Attack Speed positively, increasing a Melee Weapon's rate of attack: 4100 Redline Push Gauss' battery beyond the redline, supercharging his Abilities and setting Fire Rate, Attack Speed, Reload Speed, and Holster Rate into overdrive. When past the redline, bolts of arcing electricity dance periodically from Gauss, exploding en masse when the ability is deactivated. Introduced in Update 25.7 (2019-08-29)  Strength:100 / 200 / 300 / 400 ( Impact and  Puncture area damage)  Duration:15 / 20 / 25 / 30 s (duration)6 - 30% / 9 - 45% / 12 - 60% / 15 - 75% (fire rate buff)5 - 25% / 6 - 30% / 7 - 35% / 8 - 40% (attack speed buff)4 - 20% / 6 - 30% / 8 - 40% / 10 - 50% (reload speed buff)4 - 20% / 6 - 30% / 8 - 40% / 10 - 50% (casting speed buff)  Range:N/A Misc: ? m (activation knockback radius)+20% (battery limit release)50% (projectile accuracy)50% (energy discount for Mach Rush)100% (melee damage bonus and stagger chance for Kinetic Plating)100% ( Cold freeze chance and  Heat ignite chance for Thermal Sunder)≤100% ( Blast enemy armor reduction for Thermal Sunder) 250 Penance Sacrifice shields to boost reload, and fire rate while converting damage inflicted on enemies into health for Harrow and nearby allies. Introduced in Update 21.0 (2017-06-29)  Strength:50% (initial heal)5% (lifesteal on hit)20% / 25% / 30% / 35% (fire rate bonus)40% / 50% / 60% / 70% (reload speed bonus)  Duration:4 s (base time)1.25 / 1.33 / 1.43 / 1.54 s (bonus per 100 shields)  Range:N/A Misc: 50 m (affinity range)120 s (max duration) 275 Warcry Valkyr lets out a rallying cry that bolsters her allies melee speed while slowing down nearby enemies. Introduced in Update 11.0 (2013-11-20)  Strength:15 / 20 / 25 / 50 % (speed buff)25 / 35 / 45 / 50 % (armor buff)15 / 20 / 25 / 30 % (slow)  Duration:7 / 10 / 12 / 15 s  Range:15 / 20 / 22 / 25 m Misc: 75 % (slow cap) Subsumable to Helminth 225 Speed Volt energizes his body and nearby Warframes, giving them increased speed and dexterity for a short time. Introduced in Update 5.3 (2013-01-10)  Strength:75% (speed buff)10% / 15% / 20% / 25% (reload speed buff)  Duration:9 / 10 / 11 / 12 s  Range:25 m 125 Reservoirs Choose and summon a Reservoir filled with Motes that attach to and aid Wisp and her allies. Haste Mote grants increased movement and attack speed. Vitality Mote increases maximum health and heals over time. Shock Mote stuns nearby enemies. Introduced in Update 25.0 (2019-05-22) Strength: 300 (max health) 30 s-1 (heal over time) Duration: 19 / 22 / 26 / 30 s (Mote lifespan) Range: 5 m (Reservoir range) Misc:∞ (Reservoir lifespan)6 (max reservoirs active)25 % (Sol Gate damage buff) Strength: 20 % (movement speed)20 % (attack speed)30 % (fire rate) Duration: 19 / 22 / 26 / 30 s (Mote lifespan) Range: 5 m (Reservoir range) Misc:∞ (Reservoir lifespan)6 (max reservoirs active)100 % (Sol Gate  Corrosivestatus chance) Other Attack Speed Modifiers[] External links[] "Since the attack speed stat in the arsenal tells you almost nothing, I calculated the true attack speed for every melee combo in the game" by u/GoldPhos See also[] Fire Rate, the equivalent game mechanic for ranged weapons. 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