At the start of the Trial, 4 random Hooks are changed into Scourge Hooks:

The Auras of Scourge Hooks are revealed to you in white.
Each time a Survivor is hooked on a Scourge Hook, the following effects apply:

The Generator with the most Progression explodes, instantly losing 9/12/15 percent of its Progression and starting to regress.
Survivors repairing that Generator will scream, but not reveal their location.

Each time a Survivor is rescued from a Hook when you are at least 32 meters away, Make Your Choice activates:
The Rescuer screams and suffers from the Exposed Status Effect for the next 40/50/60 seconds.
Make Your Choice has a cooldown of 40/50/60 seconds.

Whenever a Survivor performs a Healing action while they are inside your Terror Radius, that Survivor suffers from the Blindness and Exhausted Status Effects
These effects linger for 6/8/10 seconds after the Healing action is interrupted by any means.

Unlocks potential in ones aura reading ability.  Reveals dying Survivors auras when standing within a 36 meter range.