Sweeper / Oracle

The Oracle Lens, commonly called the Sweeper, is a trinket that emits a temporary detection field, revealing and disabling nearby enemy wards and traps so they can be destroyed. It is the main tool players swap to in the mid and late game when controlling vision becomes more important than placing it.

Sweeping is essential before contesting objectives or moving as a team, since clearing enemy wards blinds the opposition and hides your team's movements. Junglers and supports lean on the Oracle Lens heavily, and coordinated sweeping paired with Control Wards lets a team win the information war that sets up picks and objective control.