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League of Legends Wiki
League of Legends Wiki

The Crest of Insight is a neutral buff granted by the Blue Sentinel Blue Sentinel. It is available only on Summoner's Rift.

The holder of the buff is marked by swirling blue runes around the champion, so the Crest of Insight is often referred to as the blue buff or just blue.

How to obtain

  • By landing the killing blow to the Blue Sentinel Blue Sentinel.
  • By killing a champion that currently possesses this buff, the buff is then passed to the killer. In this case, the duration of the buff is refreshed.
  • After an allied Ivern Ivern (at least level 5) applies and then triggers Friend of the Forest Friend of the Forest on the camp of Blue Sentinel Blue Sentinel; the blue orb within the camp has to be collected.
    • The buff will last for 90 seconds instead of 120 seconds in this case.


  • The bonus energy restored is 7 per second (5 + 200 × 1%) on most energy-champions, and 9 per second on Shen Shen (5 + 400 × 1%).
  • The buff can only be lost by timing out or death. Receiving the buff while dead will keep it after respawning.

Old Icon


  • Its old icon was recycled from Tabu's Tabu's Tattoo Tattoo.

Patch History

  • Bug Fix: Buff is no longer lost when the holder is executed by a non-epic monster.
  • Bonus changed to 10 ability haste from 10% cooldown reduction.
  • New buff icon and VFX.
  • Duration increased to 120 seconds, for all buffs, from 90 beyond the first.
  • Removed: Increasing ability power by 15%.
  • Removed: Granting 2 − 36 (based on level) ability power.
  • New Effect: Now increases ability power by 15%.
  • Mana regeneration increased to 1% of maximum mana from 0.5%.
  • Energy regeneration increased to 1% of maximum energy from 0.5%.
  • New Effect: Buffs last 120 seconds the first time a buff camp is cleared, and 90 seconds on subsequent clears.
  • New Effect: Now grants 2 − 36 (based on level) ability power.
  • Duration reduced to 120 seconds from 150.
  • Cooldown reduction reduced to 10% from 20%.
  • Mana regeneration reduced to 0.5% of maximum mana from 1%.
  • Energy regeneration reduced to 0.5% of maximum energy from 1%.
  • New Effect: Now grants 25 flat mana regeneration.
  • Mana regeneration reduced to 1% of maximum mana from 1.5%.
  • Energy regeneration reduced to 1% of maximum energy from 1.5%.
  • Bug Fix: Fixed a bug where Crest of the Ancient Golem was not restoring energy.
    • New Effect: If you have energy, restores 1.5% of your maximum energy per second.
  • Scaling increased to 25% from 16.5%.
  • Cooldown reduction reduced to 25% from 35%.
  • Mana regeneration reduced to 1.5% of maximum mana from 2%.
July 10, 2009 Patch Added