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Flash is a blink summoner spell that activates instantly upon being cast, teleporting the player's champion a short distance in the direction of their cursor.


Flash.png Flash can easily be used to escape from or catch up with a foe. It can be used to dodge or land abilities. It can also be used to move over walls, either for a quick escape or in response to an opponent's dash.


Summoner Spell Cooldown Reduction Flash.png F Teleport.png T Clarity.png C Heal.png H Cleanse.png C Exhaust.png E Ignite.png I Barrier.png B Ghost.png G Smite.png S (recharge) Clairvoyance.png C Mark.png M
Without any 0% 300s 300s 240s 210s 180s 75s 60s 80s
Ionian Boots of Lucidity item.png Ionian Boots of Lucidity 10% 270s 270s 216s 189s 162s 67.5s 54s N/A
Summoner's Insight mastery s4.png Insight 15% 255s 255s 204s 178.5s 153s 63.75s 51s N/A
Ionian Boots of Lucidity item.png Ionian Boots of Lucidity + Summoner's Insight mastery s4.png Insight 25% 225s 225s 180s 157.5s 135s 56.25s 45s N/A
ARAM aura 40% 180s N/A 144s 126s 108s N/A N/A 48s
ARAM aura + Summoner's Insight mastery s4.png Insight 49% 153s N/A 122.4s 107.1s 91.8s N/A N/A 40.8s
ARAM aura + Ionian Boots of Lucidity item.png Ionian Boots of Lucidity 50% 150s N/A 120s 105s 90s N/A N/A 40s
ARAM aura + Ionian Boots of Lucidity item.png Ionian Boots of Lucidity + Summoner's Insight mastery s4.png Insight 59% 123s N/A 98.4s 86.1s 73.8s N/A N/A 32.8s


  • For a time, the inclusion of Flash.png Flash in the game was hotly debated and Riot even considered removing it from the game entirely, with parts of the community for and against removal. As a result, it has suffered several nerfs.
  • One of the pieces of trivia in the loading screen states that it takes 3 hours and 20 minutes (40 Flash) to travel from one fountain to another only with Flash.png Flash and without masteries.

Patch History


  • Movement commands now persist after Flashing in the same direction you're moving.


  • New particles and sound.


  • Icon updated. Flash


  • Cooldown increased to 300 seconds from 265 seconds.
  • Summoner's Insight mastery s3.png Summoner's Insight is now calculated after other Summoner Flash cooldown reductions.


  • Cooldown increased to 265 seconds from 255 seconds.
  • Range reduced to 400 from 450.


  • No longer pops projectiles.
  • Cooldown increased to 255 seconds from 240 seconds.


  • No longer breaks stealth.


  • Can no longer be cast while rooted.


  • Flash.png Flash now removes stealth when used.


  • Range reduced to 425 from 450.


  • Cooldown increased to 240 seconds from 210 seconds.


  • Cooldown increased to 210 seconds from 195 seconds.


  • Cooldown increased to 195 seconds from 180 seconds.


  • Changed Flash.png Flash's targeting type so it no longer requires a location click; now it uses the location of the cursor.
  • Fixed a bug where attempting to cast Flash.png Flash extremely far distances away would cause the champion to move, instead of teleporting in that direction.


  • Range reduced to 450 from 1000.
  • Cooldown reduced to 180 seconds from 360 seconds.
  • Flash.png Flash now pops incoming projectiles when used.


  • Cooldown increased to 360 seconds from 330 seconds.


  • Cooldown increased to 330 seconds from 300 seconds.
  • Cast range reduced by 100.

July 10, 2009 Patch:

  • Cooldown increased to 300 seconds from 270 seconds.

June 26, 2009 Patch:

June 12, 2009 Patch: Reworked

  • Reduced range to 800 from 900.
  • Changed functionality: Flash.png Flash is now cast without the need of a target indicator (i.e. it is cast towards the position of your mouse pointer).
  • Flash.png Flash will automatically flash to the furthest valid range in the direction it is cast at.
  • Flash.png Flash no longer has a cast time (to 0 from 0.5).

May 9, 2009 Patch:

  • Cooldown reduced to 210 seconds from 240 seconds.

May 1, 2009 Patch:

  • Reduced cast time to 0.5 seconds from 0.75 seconds.

Alpha Week 5:

  • Cooldown increased to 240 seconds from 210 seconds.

Alpha Week 4:

  • Cooldown increased to 210 seconds from 150 seconds.

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