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  • The user's attack speed cap is increased to 90.0 for the duration, however this value is already beyond the technical limit for attack speed.
  • The effect is able to remove Sion OriginalSquare Sion's Glory in Death Glory in Death attack speed cap but is not able to remove Jhin OriginalSquare Jhin's or Graves OriginalSquare Graves'.
  • Lethal Tempo is not activated if the damage is entirely mitigated by effects such as Spell Shield spell shield and Cosmic Radiance invulnerability.


  • Lethal Tempo has a very similar effect to Hail of Blades rune Hail of Blades, with several differences:
    • Lethal Tempo lasts for any amount of attacks over a duration, whereas Hail of Blades rune Hail of Blades lasts for a limited amount of attacks.
    • Lethal Tempo's activation is delayed, whereas Hail of Blades rune Hail of Blades activates immediately.
    • Lethal Tempo can be activated by dealing damage. Hail of Blades rune Hail of Blades can only be activated on-attack.


Patch History

  • Bug Fix: Now properly grants bonus attack speed after attacking enemy champions even if the target is shielded.
  • 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.


Start a Discussion Discussions about Lethal Tempo

  • Interaction between Garen E and Lethal Tempo Rune?

    8 messages
    • There is no theoretical limit. However, it is obviously limited to how much attack speed you can get from items, which is, itself, limited.
    • Incidentally, even though the 2.5 cap is applied to the actual Attack Speed, the numbers from the items still contribute to spins. At lvl 18, w...
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