After being unhooked or unhooking yourself, Decisive Strike activates for the next 40/50/60 seconds:

When being grabbed or picked up by the Killer, succeed a Skill Check to automatically escape their grasp, stunning them for 3 seconds.
Successfully stunning the Killer will disable Decisive Strike for the remainder of the Trial and result in you becoming the Obsession.
While Decisive Strike is active, performing Conspicuous Actions will deactivate it for the remainder of the Trial.

Decisive Strike deactivates once the Exit Gates are powered.

Increases the odds of becoming the Killer's initial Obsession by +100 percent.
The Killer can only be obsessed with Survivor at a time.

Unlocks potential in your Aura-reading ability.
Each time a Generator is completed, the Auras of any Generators, Chests, and Totems within 32/48/64 metres are revealed to you for 10 seconds.

If you are holding a Map, any objects revealed by Detectives Hunch will automatically be tracked by it.

Whenever you are the only Survivor in the Trial, who is not either in the Dying State, hooked, or already dead, Low Profile activates:

Suppresses your Pools of Blood, Scratch Marks, and Grunts of Pain for 70/80/90 seconds.

Whenever you are in the Injured State, Pharmacy activates:

Increases the Unlocking speed of Chests by 40/60/80 percent.
Reduces the Hearing range of noises related to Unlocking by -8 metres.
Guarantees an Emergency Med-Kit when unlocking a Chest.

Unlocks potential in your Aura-reading ability:
The Auras of Survivors in the Injured State or in the Dying State within 64/96/128 metres of your location are revealed to you.
Empathy does not reveal the Aura of a Survivor being carried by the Killer.

Suppresses both the Loud Noise Notification and the sound effects triggered by rushing to vault Windows, Pallets, or rushing to enter or exit Lockers.
Quick & Quiet has a cool-down of 30/25/20 seconds.