Exhaust is a targeted summoner spell that affects enemy champions. It slows the enemy champion movement speed and reduces their damage dealt for a few seconds.

Strategy

  • Exhaust Exhaust is an extremely powerful tool for disabling champions who 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

  • Exhaust Exhaust will not reduce true damage.
  • Since V1.0.0.129, Cleanse Cleanse will remove Exhaust Exhaust's effects.
  • Using Exhaust Exhaust on a champion when the target is already affected by that spell will reapply the effect, resetting its duration. It will not increase the effect.
  • The cooldown of this spell can be reduced by summoner spell cooldown reduction.
Summoner spell CDR
Base cooldown ▶ 300s
(FlashTeleport)
270s
(Heal)
240s
(Clarity)
210s
(CleanseExhaustIgnite)
180s
(BarrierGhost)
90s
(Smite)
80s
(Mark)
Cooldown reduction icon Cooldown reduction
5% (Cosmic Insight rune) 285s 256.5s N/A 199.5s 171s 85.5s N/A
10% (Ionian Boots of Lucidity item) 270s 243s N/A 189s 162s 81s N/A
15% (Ionian Boots of Lucidity itemCosmic Insight rune) 255s 229.5s N/A 178.5s 153s 76.5s N/A
40% (Howling Abyss aura) 180s 162s 144s 126s 108s N/A 48s
43% (Howling Abyss auraCosmic Insight rune) 171s 153.9s 136.8s 119.7s 102.6s N/A 45.6s
50% (Howling Abyss auraIonian Boots of Lucidity item) 150s 135s 120s 105s 90s N/A 40s
52.5% (Howling Abyss auraIonian Boots of Lucidity itemCosmic Insight rune) 142.5s 128.25s 114s 99.75s 85.5s N/A 38s

Patch History

V8.9
  • Bug Fix: Casting Exhaust now correctly puts the caster in combat.
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.
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