When you unhook a Survivor, the rescued Survivor benefits from the following effects for 4/6/8 seconds:

Scratch Marks and Pools of Blood are suppressed.
Additional 7 percent Haste Status Effect, boosting their Movement speed.
Guardian reveals the Killers Aura to you for 8 seconds.

Unlocks potential in your Aura-reading ability:
Paranoia paired with your horror of failure helps prepare you from repeating the same mistakes.

The Auras of the 3 Generators in closest proximity to one another are revealed to you for 30/45/60 seconds at the start of the Trial, and each time a Generator is completed.
Increases your Repair speed on those Generators by +5 percent while active.
If you are holding a Map, all Generators revealed by Déjà Vu are automatically added to it.

After stunning the Killer with a Pallet, break into a sprint at 150 percent of your normal Running Movement speed for 4 seconds.

Smash Hit causes the Exhausted Status Effect for 60/50/40 seconds.

Smash Hit cannot be used when Exhausted.

Unlocks potential in your Aura-reading ability:
The Auras of closed Chests and dropped Items in the environment within 16/24/32 metres of your location are revealed to you.
Grants a considerably better chance at finding an Item of a higher Rarity from Chests.