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Item was removed in Patch 8.8.
Sweeping Lens
ItemSquareSweeping Lens.png
Summons a Sweeper Drone at the target location for 6 seconds (500 - 2000 (based on level) cast range; 90 - 60 (based on level) second cooldown). The drone has a 450 - 575 (based on level)-unit detection radius.
Additional Information
LimitationsSwitching trinket disables its use for 120 seconds. Switching to Oracle Alteration keeps the current cooldown, if there is any.
Map AvailabilitySR
Total Cost: None Goldcurrency.png


  • The Drone summoned by Sweeping Lens sweeps the surrounding area, detecting all units within its detection radius regardless of terrain and brush.
    • Unseen units, as well as visible traps and wards will be displayed as a red silhouette. This does not render them targetable.
    • Stealthed traps and wards are revealed. Wards are also disabled.
  • Sweeping Lens uses a edge range.

Similar Items[]

Patch History[]


Sweeping Lens removed. Oracle Alteration now available at level 1. Swapping trinkets now retains the same percentage cooldown as the previous one.

The decision-making surrounding trinket swaps is currently a bit more complicated than it needs to be. By making swaps more consistent and decreasing the number of potential swaps, we're hoping to make the gains from those swaps more clear. REMOVED
Sweeping Lens

SOLD OUT : Sweeping Lens is no longer available in the store

Oracle Alteration


Trinket Swap Rules

SAME COOLDOWN : Swapping from one trinket to another now retains the same percentage cooldown as the previous one, rather than resetting to a 120 second cooldown

Items that reveal traps no longer disable them.

Sweeping Lens

HOW LAZY : No longer disables traps (still reveals them!)
CARRY-OVER : Also affects Oracle’s Alteration

Control Ward

HOW LAZY : No longer disables traps (still reveals them!)

Duskblade of Draktharr

HOW LAZY : Duskblade’s Blackout passive no longer disables traps (still reveals them, and still disables wards!)
BUGFIX : Champion clones (ex. Wukong’s W - Decoy) no longer instantly gains the Blackout passive when spawned

Find hidden Cho'Gaths easier.

This will have very little impact when it comes to sweeping wards, but it should be more fun to 'tag' fatty champions hiding in the brush.

SCAN DETECTION : [Center to center] Center to edge
SCAN EQUALITY : Also affects Oracle's Alteration


SIGHT BEYOND SIGHT In addition to disabling wards, Sweeping Lens will spawn warning particles over units it finds that you can't see (champions, pink wards, etc.)
500 - 2000 (at levels 1-18) :
90 - 60 seconds (at levels 1-18) :
450 - 575 (at levels 1-18) :


"When the cooldown on the upgraded red trinket was increased, we missed the fact that the middle tier red trinket now had a lower cooldown than the item it upgraded into. We changed the tooltip last patch and we're making the actual change now. "
  • COOLDOWN AT LEVEL 9+ : 60 seconds 75 seconds


We were intending to make this change to match the Oracle's Lens cooldown change from Patch 5.1 but only the tooltip went out (the cooldown is still 60 seconds). We'll fix this next patch!
  • COOLDOWN AT LEVEL 9+ AUTOMATIC UPGRADE : 60 seconds 60 seconds (but the tooltip says 75. We're not crazy, people.)


"Feedback loop.
This is technically a strategic item, but we have nowhere else to put it anyway. "
  • LEGITIMATE BUG : The visual indicator for the area-of-effect of Greater Lens no longer reverts to the smaller indicator for Sweeping Lens after dying and respawning (actual range was unaffected)


  • START COOLDOWN (FOR ALL TRINKETS): 120 seconds ⇒ 30 seconds

A lot of players were relying on the early Warding Totem to protect standard invade paths, which ended up preventing meaningful aggression. We like that invading can be a team strategy, so we're hoping this helps out. Plus, lowering the swap cooldown for trinkets should allow for more flexibility.

  • START COOLDOWN (FOR ALL TRINKETS): 90 seconds ⇒ 120 seconds
  • SWAP COOLDOWN (FOR ALL TRINKETS): 180 seconds ⇒ 120 seconds


  • Drone duration increased to 6 seconds from 4.
  • Now builds directly into the Oracle's Lens.
  • At level 9, the cast range and sweep radius are increased by 50% and the cooldown is reduced to 60 seconds.


  • Cooldown reduced to 120 seconds (from 180 seconds)


  • Sweeping Lens - disables and reveals nearby hidden wards, traps or devices for 4 seconds (180 second cooldown, 400 range)