After a Survivor loses a health state, Gearhead activates.

While Gearhead is active, the next time a Survivor completes a Great Skill Check while repairing, the perk deactivates and their aura is revealed to you for 10 seconds.

Any Survivor who blinds you or stuns you using a Pallet becomes the Obsession.
Anytime your Obsession switches to another Survivor by any means, that Survivor then suffers from the Oblivious Status Effect for 40/50/60 seconds and their Aura is revealed to you for 4 seconds.
You can only be obsessed with one Survivor at a time.

You hear the sporadic whispers of the Entity whenever at least one Survivor is within 48/40/32 meters of your location.

3 seconds after injuring a Survivor by any means, Dissolution activates for 20 seconds.  While Dissolution is active, if a Survivor fast vaults over a pallet inside of your Terror Radius, The Entity will break the pallet at the end of the vault, and Dissolution deactivates.

While you are chasing the Obsession, this perk activates.

Damaging generators and breaking walls or pallets gives you a 5percent Haste Status for 10 seconds.

 Whenever you hit the Survivor with the total most time in chase with a basic attack, they become the obsession.

When you hook a Survivor, Dead Mans Switch activates for the next 30 seconds.

While activated, any Survivor that stops repairing a generator before it is fully repaired causes The Entity to block the generator until Dead Mans Switchs effect ends.

Affected generators are highlighted by a white aura.