After repairing Generators for a total of 12/10/8 uninterrupted seconds, press the Active Ability button to activate Potential Energy:

Continuing to repair the Generator will charge Potential Energy instead of progressing the Generator.
Converts 1.5 percent of Repair progression into 1 Token, up to a maximum of 20 Tokens.
Missing Skill Checks results in losing some Tokens.
While Potential Energy has at least 1 Token, press the Active Ability button while repairing a Generator to instantly progress it by 1 percent per Token, consuming all remaining Tokens and deactivating Potential Energy.

Potential Energy loses all Tokens and deactivates upon losing a Health State.

Whenever another Survivor is hooked, Fast Track gains 1/2/3 Tokens, up to a maximum of 9/18/27 Tokens.

You consume all accumulated Tokens after a Great Skill Check on a Generator.
Each Token grants a stack-able 1 percent Progression bonus in addition to the default Progression bonus for succeeding a Great Skill Check.

Each time a Survivor other than yourself is killed or sacrificed, Sole Survivor gains 1 Token, up to a maximum of 3 Tokens:

Each Token grants a stack-able radius of 20/22/24 metres within which the Killer is unable to read your Aura, up to a maximum of 60/66/72 metres.
Once you are the last Survivor standing, you benefit from the following effects:

Increases your Repair speed of Generators by +75 percent.
Increases your Opening speed of the Exit Gates and the Hatch by +50 percent.
Increases the odds of becoming the Killers initial Obsession by +100 percent.

The Killer can only be obsessed with Survivor at a time.

Unlocks potential in your Aura-reading ability:
For the duration of the Killer carrying another Survivor, you see the Aura of every Hook within 56 metres of the pick-up location:

The Auras of regular Hooks are revealed to you in white.
The Auras of Scourge Hooks are revealed to you in yellow.
Unlocks the ability to sabotage Hooks without needing a Toolbox.

Sabotaging a Hook without a Toolbox takes 2.5 seconds.
The Sabotage action has a cool-down of 90/75/60 seconds.

Reduces the duration of your Scratch Marks by 3/4/5 seconds.
Your Scratch Marks are spaced inconsistently.

Interacting with a Locker while holding the Sprint button has the following effects:

You do not enter the Locker.
The Locker's doors swing open and close swiftly, feigning a Survivor entering it.
Triggers a Loud Noise Notification at the Locker's location, feigning a Survivor rushing to enter it.
Suppresses the creation of Scratch Marks and Pools of Blood for 3 seconds.
Deception has a cool-down of 60/50/40 seconds.