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 CDR
Base cooldown ▶ 300s
(FlashTeleport)
240s
(ClarityHeal)
210s
(CleanseExhaustIgnite)
180s
(BarrierGhost)
75s
(Smite)
80s
(Mark)
Cooldown reduction icon Cooldown reduction
5% (Cosmic Insight rune) 285s 228s 199.5s 171s 71.75s N/A
10% (Ionian Boots of Lucidity item) 270s 216s 189s 162s 67.5s N/A
15% (Ionian Boots of Lucidity itemCosmic Insight rune) 255s 204s 178.5s 153s 63.25s N/A
25% (Unsealed Spellbook rune) 225s 180s 157.5s 135s 56.25s N/A
30% (Unsealed Spellbook runeCosmic Insight rune) 210s 168s 147s 126s 52.5s N/A
35% (Unsealed Spellbook runeIonian Boots of Lucidity item) 195s 156s 136.5s 117s 48.75s N/A
40% (Unsealed Spellbook runeIonian Boots of Lucidity itemCosmic Insight rune) 180s 144s 126s 108s 45s N/A
40% (Howling Abyss icon) 180s 144s 126s 108s N/A 48s
43% (Howling Abyss iconCosmic Insight rune) 171s 136.8s 119.7s 102.6s N/A 45.6s
50% (Howling Abyss iconIonian Boots of Lucidity item) 150s 120s 105s 90s N/A 40s
52.5% (Howling Abyss iconIonian Boots of Lucidity itemCosmic Insight rune) 142.5s 114s 99.75s 85.5s N/A 38s
55% (Howling Abyss iconUnsealed Spellbook rune) 135s 108s 94.5s 81s N/A 36s
58% (Howling Abyss iconUnsealed Spellbook runeCosmic Insight rune) 126s 100.8s 88.2s 75.6s N/A 33.6s
65% (Howling Abyss iconUnsealed Spellbook runeIonian Boots of Lucidity item) 105s 84s 73.5s 63s N/A 28s
68% (Howling Abyss iconUnsealed Spellbook runeIonian Boots of Lucidity itemCosmic Insight rune) 96s 76.8s 67.2s 57.6s N/A 25.6s

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.
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