Exhaust is a targeted Summoner spell that affects enemy champions. It reduces their movement speed by 30% and their damage dealt by 40% for 2.5 seconds.

Strategy

Exhaust Exhaust is an extremely powerful tool for disabling champions who mainly autoattack, as well as any champion that can deal a high amount of damage. When your team is chasing an enemy and he or she is getting away, using Exhaust Exhaust on him will help your team gain the upper hand. Using it against enemies when escaping can help you as their movement speed will be decreased.

Notes

Summoner Spell
Cooldown Reduction
Flash F Teleport T Clarity C Heal H Cleanse C Exhaust E Ignite I Barrier B Ghost G Smite S (recharge) Mark M
Without any 0% 300s 300s 240s 210s 180s 75s 80s
Cosmic Insight rune Cosmic Insight 5% 285s 285s 228s 199.5s 171s 71.75s N/A
Ionian Boots of Lucidity item Ionian Boots of Lucidity 10% 270s 270s 216s 189s 162s 67.5s N/A
Ionian Boots of Lucidity item Ionian Boots of Lucidity + Cosmic Insight rune Cosmic Insight 15% 255s 255s 204s 178.5s 153s 63.25s N/A
Unsealed Spellbook rune Unsealed Spellbook 25% 225s 225s 180s 157.5s 135s 56.25s N/A
Unsealed Spellbook rune Unsealed Spellbook + Cosmic Insight rune Cosmic Insight 30% 210s 210s 168s 147s 126s 52.5s N/A
Unsealed Spellbook rune Unsealed Spellbook + Ionian Boots of Lucidity item Ionian Boots of Lucidity 35% 195s 195s 156s 136.5s 117s 48.75s N/A
Unsealed Spellbook rune Unsealed Spellbook + Cosmic Insight rune Cosmic Insight + Ionian Boots of Lucidity item Ionian Boots of Lucidity 40% 180s 180s 144s 126s 108s 45s N/A
ARAM aura 40% 180s N/A 144s 126s 108s N/A 48s
ARAM aura + Cosmic Insight rune Cosmic Insight 43% 171s N/A 136.8s 119.7s 102.6s N/A 45.6s
ARAM aura + Ionian Boots of Lucidity item Ionian Boots of Lucidity 50% 150s N/A 120s 105s 90s N/A 40s
ARAM aura + Ionian Boots of Lucidity item Ionian Boots of Lucidity + Cosmic Insight rune Cosmic Insight 52.5% 142.5s N/A 114s 99.75s 85.5s N/A 38s

Patch History

V7.5
  • Removed: Reducing target's attack speed by 30%.
  • Removed: Reducing target's resistances by 10.
V4.13
  • Damage reduction reduced to 40% from 50%.
  • New Effect: Now reduces the target's armor and magic resistance by 10.
V4.12
  • New Effect: Visuals changed to improve clarity.
V4.10
  • Bug Fix: Fixed a bug where it did not grant assists when used against slow immune targets (who are still affected by the damage reduction effect).
V4.5
  • Attack speed cripple reduced to 30% from 50%.
  • Damage reduction increased to 50% from 30%.
  • Range increased to 650 from 550.
V1.0.0.152
  • Movement speed reduction reduced to 30% from 40%.
  • New Effect: Now reduces attack speed by 50%.
  • New Effect: Now reduces all damage dealt by 30% from 70% for attacks and 30% from abilities/items.
V1.0.0.129
  • Cleanse Cleanse now cleanses summoner spell debuffs such as Exhaust Exhaust's movement speed and damage reduction and Ignite Ignite's damage over time.
  • Duration reduced to 2.5 seconds from 3 seconds.
  • Improved Exhaust Exhaust no longer increases the duration.
V1.0.0.116
  • Bug Fix: Fixed a bug where it was slowing the target additively rather than multiplicatively.
V1.0.0.108
  • New Effect: Now reduces (auto/basic) attack damage by 70% and ability/item damage by 35% instead of blinding for the duration.
V1.0.0.104
  • New Effect: Now properly flagged as a slow + blind and can now be removed by Cleanse Cleanse.
V1.0.0.97
  • New Effect: Now removes stealth when used.
V1.0.0.72
  • New Effect: Now split into two buffs: Exhaust Slow and Exhaust (Blind). Highlander Highlander should no longer dispel blind.
V0.9.25.34
  • New Effect: Can now be removed by abilities that remove slow.
V0.9.22.7
  • Cooldown reduced to 210 seconds from 240.
V0.8.21.110
  • Cooldown reduced to 240 seconds form 270.
May 23, 2009 Patch
  • Slow reduced to 40% from 50%.
May 1, 2009 Patch Remake
  • Removed: No longer silences, it now blinds the target (100% miss chance).
April 25, 2009 Patch
  • Reduced cast range to 550 from 650.
April 11, 2009 Patch
  • Duration reduced by 1 second.
  • Cooldown increased to 4.5 from 4 minutes.
  • Slow percent increased to 50% from 40%.
Alpha Week 4
  • Ccooldown decreased to 4 minutes from 5.