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Lethal Tempo League of Legends RunePC

Lethal TempoRune Patch History

Precision - Keystone · League of Legends (PC)Also in: Lethal Tempo in Wild Rift

Lethal Tempo Current Status

Holding steady - Lethal Tempo's last 3 changes were balance adjustments. Lethal Tempo has been changed in 19 League of Legends patches. 6 buffs, 3 nerfs, 10 adjustments. Most recently adjusted in Patch 25.12 ().

Attacking an enemy champion grants you Melee: 6% / Ranged: 4% Attack Speed for 6 seconds, up to 6. At max stacks, deal Melee: 9 - 30 / Ranged: 6 - 24 bonus adaptive damage On-Attack, increased by 1% per 1% Bonus Attack Speed.

Lethal Tempo Changes

Patch 25.12

change

Lethal Tempo

  • Bug Fix: Player name now properly displays in chat when the player pings their own (via the HUD) or another player's (via the scoreboard) Lethal Tempo.

Patch 25.9

change

Lethal Tempo

  • Bug Fix: Pinging the rune (one's own in the HUD or another player's via the scoreboard) no longer omits the target player's name from the chat message.

Patch 25.S1.2

change

Lethal Tempo

  • Bug Fix: No longer deals an incorrect amount of damage.

Patch 14.21

buff

Lethal Tempo

  • Bonus attack speed per stack increased to 6% from 5%.
  • Maximum bonus attack speed increased to 36% from 30%.

Patch 14.20

change

Lethal Tempo

  • Bug Fix: Now properly grants stacks when attacking champion clones.

Patch 14.19

buff

Lethal Tempo

  • New Effect:
  • Basic attacks on-attack against enemy champions grant a stack for 6 seconds, refreshing on subsequent attacks and stacking up to 6 times. Gain 5% bonus attack speed for each stack, up to 30% at maximum stacks, at which your basic attacks deal 9 to 30 adaptive damage on-attack, increased by 1% per 1% bonus attack speed.
  • Old Effect:
  • Basic attacks on-attack against enemy champions grant a stack for 6 seconds, refreshing on subsequent attacks and stacking up to 6 times. Gain 5 to 16 bonus attack speed for each stack, up to 5*6 to 16*6 at maximum stacks, at which you also gain 50 bonus attack range and increase the attack speed cap to 10.
  • Tracker now counts attack uptime against champions, based on a 0.25 grace period after the previous attack's cooldown ends and starting at the new attack's launch.
  • Tracker no longer counts total maximum buff uptime.
  • Undocumented / Bug Fix: At maximum stacks, its missile launched from the user's attacks no longer incorrectly destroys spell shields.
  • Note: This was later documented in 14.20

Patch 14.10

removed

Removed from the game

Lethal Tempo

  • Removed from the game.

Patch 14.4

change

Lethal Tempo

  • Bonus attack speed per stack for melee champions changed to 5 to 16% (based on level) from 9 to 13.5% (based on level).
  • Maximum bonus attack speed for melee champions changed to 30 to 96% (based on level) from 54 to 81% (based on level).

Patch 13.20

change

Lethal Tempo

  • Bonus attack speed per stack reduced to 9 to 13.5 from 10 to 15.
  • Maximum bonus attack speed reduced to 9*6 to 13.5*6 from 60 to 90.

Patch 13.6

nerf

Lethal Tempo

  • Bonus attack speed per stack for ranged champions reduced to 4 to 9% (based on level) from 5/9/9% (at level 1/3/6/9/12/15).
  • Maximum bonus attack speed for ranged champions reduced to 24 to 54% (based on level) from 30/54/54% (at level 1/3/6/9/12/15).

Patch 12.20

nerf

Lethal Tempo

  • Bonus attack range for ranged champions reduced to 50 units from 75.

Patch 12.10

change

Lethal Tempo

  • Bug Fix: Now correctly triggers against enemy champion clones.

Patch 12.2

buff

Lethal Tempo

  • Bonus attack speed per stack changed to 10 to 15 from 13%.
  • Maximum bonus attack speed changed to 60 to 90 from 78%.

Patch 12.1

change

Lethal Tempo

  • Bug Fix: Fixed a bug where, at maximum stacks, the bonus attack speed would sometimes persist against non-champion targets.

Patch 11.24

nerf

Lethal Tempo

  • Bonus attack speed per stack changed to 13% from 15%.
  • Maximum bonus attack speed changed to 78% from 90%.
  • Bonus attack range for ranged champions reduced to 75 from 100.

Patch 11.23

buff

Lethal Tempo

  • New Effect:
  • Basic attacks on-attack against enemy champions grant a stack for 6 seconds, stacking up to 6 times. Gain 15% bonus attack speed for each stack, up to 90% bonus attack speed at maximum stacks. At maximum stacks, gain 50 bonus attack range and increase the attack speed cap to 10. Stacks decay by 1 every 0.5 seconds upon expiring.
  • Cooldown: None.
  • Old Effect:
  • After 1.5 seconds upon damaging an enemy champion you gain 40 to 110% (based on level) bonus attack speed and your attack speed cap is increased for 3 seconds. Attacking a champion while the effect is active extends the duration to 6 seconds.
  • Cooldown: 6 seconds, starts after the effect ends.

Patch 11.3

change

Lethal Tempo

  • Enabled on Ultra Rapid Fire, no longer exchanged with Press the Attack.

Patch 10.5

change

Lethal Tempo

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

Patch 8.8

buff

Lethal Tempo

  • Bonus attack speed increased to 40% to 110% (based on level) from 30% to 80% (based on level).

Patch 7.24

buff

Lethal Tempo

  • Cooldown reduced to 6 seconds from 10.

Related League of Legends Runes

Lethal Tempo League of Legends FAQ

Frequently Asked Questions
When was Lethal Tempo last changed in League of Legends?
Lethal Tempo was last adjusted in League of Legends Patch 25.12, released June 10, 2025. That patch changed Lethal Tempo (Bug Fix: Player name now properly displays in chat when the player pings their own (via the HUD) or another player's (via the scoreboard) Lethal Tempo).
How many times has Lethal Tempo been buffed or nerfed in LoL?
Lethal Tempo has been changed in 19 League of Legends patches: 6 buffs, 3 nerfs, 10 adjustments.
Is Lethal Tempo getting buffed or nerfed in LoL?
Holding steady - Lethal Tempo's last 3 changes were balance adjustments. Lethal Tempo was last adjusted in Patch 25.12.
Was Lethal Tempo changed in LoL Patch 26.16?
No - Lethal Tempo was not changed in Patch 26.16. Its most recent change was in Patch 25.12.