The frequency with which units attack is measured in attack speed. A unit's attack speed can be modified by items, agility and abilities.

Base attack timeEdit

Every unit has a base attack time (BAT), which refers to the default interval between attacks for an unbuffed unit with 0 agility and no attack speed bonus. For example, a unit with a BAT of 1.00 seconds attacks once every second by default. Similarly, if a hero with 1.7 BAT had 0 agility and no bonus attack speed, they would attack once every 1.70 seconds. While nearly every unit can have their attack speed modified, no unit can actively change their BAT.

Heroes Base Attack Time Base Attack Speed
Raijin Portrait.png Raijin 1.4 0.714
Aephus Portrait.png Aephus Crona Portrait.png Crona Gaol Portrait.png Gaol Ignis Portrait.png Ignis Kholdon Portrait.png Kholdon Seren Portrait.png Seren Sylvia Portrait.png Sylvia Xia Portrait.png Xia 1.5 0.667
Ayler Portrait.png Ayler Evoras Portrait.png Evoras Renso Portrait.png Renso 1.55 0.645
Armorlight Portrait.png Armorlight Azazel Portrait.png Azazel Bree Portrait.png Bree Drelon Portrait.png Drelon Herculeon Portrait.png Herculeon Ian Portrait.png Ian Ju'shu Portrait.png Ju'shu Kob Portrait.png Kob Mephala Portrait.png Mephala Mo Jen Portrait.png Mo Jen Sakura Portrait.png Sakura Strix Portrait.png Strix Stymire Portrait.png Stymire Thessalac Portrait.png Thessalac Treemor Portrait.png Treemor Whulag Portrait.png Whulag Xeadas Portrait.png Xeadas Xornac Portrait.png Xornac 1.6 0.625
Aghosth Portrait.png Aghosth Dedwill Portrait.png Dedwill Ganglione Portrait.png Ganglione Gorippas Portrait.png Gorippas Rachet Portrait.png Rachet Vamos Portrait.png Vamos 1.7 0.588
Granite Portrait.png Granite Menos Portrait.png Menos Yuvana Portrait.png Yuvana 1.8 0.556
Vaelnar Portrait.png Vaelnar 1.9 0.526

Attack speed formulaEdit

The formulas below denote the relationship between BAT, attack speed, attacks per second, and time between attacks, where 1% bonus attack speed = 1 attack speed.

Attacks per second = (100 + attack speed) x 0.01 / BAT
Attack time = BAT / ((100 + attack speed) x 0.01) = 1 / (attacks per second)
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