• Lethal Tempo is especially powerful on auto-attack reliant champions that have trouble disengaging, or prefer to fully commit to fights, as doubling the duration of the bonus attack speed is very powerful, and they will be weak afterwards while Lethal Tempo is on cooldown.


  • Lethal Tempo has a very similar effect to Hail of Blades rune Hail of Blades, with a few differences:
    • Lethal Tempo lasts for a few seconds, regardless of attacking, whereas Hail of Blades rune Hail of Blades lasts only for the first three attacks.
    • Lethal Tempo is delayed, whereas Hail of Blades rune Hail of Blades activates the instant you attack.
    • Lethal Tempo can be activated with basic attacks and abilities. Hail of Blades rune Hail of Blades can only be activated with basic attacks.
    • Both keystones are found in different rune paths.


Patch History

  • Bonus attack speed increased to 40% − 110% (based on level) from 30% − 80% (based on level).
  • Cooldown reduced to 6 seconds from 10.
V7.22 Added
  • Precision icon Precision Keystone rune.
    • Passive: Damaging an enemy champion begins a 1.5 second timer. Upon completion, you gain 30% − 80% (based on level) attack speed for 3 seconds. Attacking a champion while the effect is active will extend the duration to 6 seconds.
    • Lethal Tempo allows you to temporarily exceed the attack speed limit.


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