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League of Legends Wiki

Oracle Lens is a basic trinket item in League of Legends icon.png League of Legends.



Sweeper Drone icon.png

The Drone summoned by Oracle Lens Oracle Lens sweeps the surrounding area, granting Sweeper Drone icon.png obscured vision of enemy units.

  • Stealthed Ward icon.png wards and Noxious Trap.png traps are True Sight icon.png revealed. Stealthed wards are also Disabled Ward icon.png disabled.
  • Oracle Lens uses Range model.png edge range from the user's center.
    • Ward icon.png 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.
  • Oracle Lens will detect units even if they are Untargetable icon.png untargetable.
  • The Cooldown icon.png cooldown is reduced by item haste.

Exchangable with

Old icons


  • The search term 'sweeper' references the Sweeping Lens Sweeping Lens that introduced the Sweeper Drone icon.png Sweeper Drone.


Patch History

  • Updated icon.
  • Updated icon.
  • Limited to 1 Trinket item.
  • 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 Oracle Alteration:
    • Recipe: Sweeping Lens 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