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Oracle Lens is a trinket item in League of Legends icon League of Legends. It is exclusive to Summoner's Rift.
Sweeper Drone icon
The Drone summoned by Oracle Lens item Oracle Lens sweeps the surrounding area, granting Sweeper Drone icon obscured vision of enemy units.

Exchangeable with


Champion Silhouette

Three enemy Champion icon champions are spotted inside of a Brushmaker brush.

Simple Unit Silhouette

A silhouette of the Blue SentinelSquare Blue Sentinel observed behind a wall.

  • Oracle Lens uses Range model edge range from the user's center.
    • Ward icon Wards only have a radius of 1. Hence they still have 149 more vision range than they'll be detected and disabled by Oracle Lens.


  • Before patch V8.8, this item was named Oracle Alteration and required Level 9 purchase.

Patch history

  • Bug Fix: Can now be used immediately if it is the player's first purchased trinket instead of defaulting to a 90 second cooldown.
  • Cooldown when swapping trinkets is now based on time since you last used any trinket.
  • Cooldown now scales with the average level of all champions instead of the owner's level.
  • Renamed Oracle Lens from Oracle Alteration.
  • New Effect: Swapping between trinkets now sets your new trinket to the same percentage remaining cooldown as your old one rather than flat 120 second cooldown on swap.
  • Now available at level 1 from level 9.
  • Cooldown changed to 90 − 60 (based on level) seconds from 76 − 60 (based on level).
  • Range increased to 750 at all levels from 660 / 690 / 720 / 750 (based on level).
  • New Effect: Tooltip now displays Vision Score.
  • Removed: Disabling traps. Still reveals them.
V5.22 - Added
  • Oracle Alteration item Oracle Alteration:
    • Recipe: Sweeping Lens item Sweeping Lens + Level 9
    • Active: Summons a drone that escorts you for the next 10 seconds. The drone warns against unseen enemies (including stealth, fog and brush) as well as revealing and disabling wards and invisible traps within a 660 / 690 / 720 / 750 (based on level) radius area. 76 − 60 (based on level) second cooldown.


List of Items

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