Exhaust is a unit-targeted summoner spell that slows an enemy champion's movement speed and reduces their damage dealt for a few seconds.
Notes[]
- Exhaust will not reduce
true damage. 
Cleanse will remove Exhaust's effects.- Using 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.
Strategy[]
- 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 they are getting away, using Exhaust on them will help your team gain the upper hand. Using it against enemies when escaping can help you as their movement speed will be decreased.
 Summoner's Rift
| |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Base cooldown ▶ | 360s (  )
|
300s (  )
|
240s (       )
|
180s (   )
|
90s (  )
|
20s (  )
| |||
▼  Haste
| |||||||||
12 ( )
|
321.43s | 267.86s | 214.29s | 160.71s | 80.36s | 17.86s | |||
18 ( )
|
305.08s | 254.24s | 203.39s | 152.54s | 76.27s | 16.95s | |||
| 30 ( )
|
276.92s | 230.77s | 184.62s | 138.46s | 69.23s | 15.38s | |||
 Howling Abyss
| |||||||||
| Base cooldown ▶ | 300s ( )
|
240s ( )
|
180s ( )
|
80s (  )
|
20s ( )
| ||||
| ▼ Haste
| |||||||||
70 ( )
|
176.47s | 141.18s | 105.88s | 47.06s | 11.76s | ||||
| 82 ()
|
164.84s | 131.87s | 98.9s | 43.96s | 10.99s | ||||
| 88 ()
|
159.57s | 127.66s | 95.74s | 42.55s | 10.64s | ||||
| 100 ()
|
150s | 120s | 90s | 40s | 10s | ||||
Trivia[]
- The first icon for
Exhaust was recolored for the icon for the Season 2011 mastery 
Cripple. - Exhaust is a reworked version of
Stifle, an old summoner spell. Early versions of Exhaust even retained Stifle's 
silence effect.
Media[]
Sound Effects[]
- Activation
- ▶️ Summoner Spell SFX
- Effect active
Patch History[]
- Cooldown increased to 240 seconds from 210.
- Slow increased to 40% from 30%.
- Damage reduction reduced to 35% from 40%.
- Duration increased to 3 seconds from 2.5.
- New Effect: Now shows how much damage is being reduced.
- Bug Fix: Casting Exhaust now correctly puts the caster in combat.
- Removed: Reducing target's attack speed by 30%.
- Removed: Reducing target's resistances by 10.
- Damage reduction reduced to 40% from 50%.
- New Effect: Now reduces the target's armor and magic resistance by 10.
- New Effect: Visuals changed to improve clarity.
- 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).
- Attack speed cripple reduced to 30% from 50%.
- Damage reduction increased to 50% from 30%.
- Range increased to 650 from 550.
- 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.
- Cleanse now cleanses summoner spell debuffs such as
Exhaust's movement speed and damage reduction and 
Ignite's damage over time. - Duration reduced to 2.5 seconds from 3 seconds.
- Improved Exhaust no longer increases the duration.
- Bug Fix: Fixed a bug where it was slowing the target additively rather than multiplicatively.
- New Effect: Now reduces (auto/basic) attack damage by 70% and ability/item damage by 35% instead of blinding for the duration.
- New Effect: Now properly flagged as a slow + blind and can now be removed by Cleanse.
- New Effect: Now removes stealth when used.
- New Effect: Now split into two buffs: Exhaust Slow and Exhaust (Blind).
Highlander should no longer dispel blind.
- New Effect: Can now be removed by abilities that remove slow.
- Cooldown reduced to 210 seconds from 240.
- Cooldown reduced to 240 seconds form 270.
- Slow reduced to 40% from 50%.
- May 1, 2009 Patch Remake
- Removed: No longer silences, it now blinds the target (100% miss chance).
- Reduced cast range to 550 from 650.
- Duration reduced by 1 second.
- Cooldown increased to 4.5 from 4 minutes.
- Slow percent increased to 50% from 40%.
- Ccooldown decreased to 4 minutes from 5.
| Common |
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|---|---|
| Map-exclusive |
|
| Featured Game Mode |
|
| Removed |
|
