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 unhooked from a Scourge Hook, the following effects apply:

The Auras of all other Survivors are revealed for 5/6/7 seconds.

Each time a generator is completed, Coup de Grace grows in power.  Gain a token.

Consume one token to increase the distance of your next lunge attack by 80percent

Fresh blood marks are considerably more discernible than normal and can be tracked for 4 seconds longer than normal.

Survivors who take a protecti0on hit are inflicted with the Broken status effect for 80 seconds.

Broken prevents Survivors from being healed.

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.

While carrying a Survivor, you suffer no cool-down on missed attacks.
Successfully hitting a Survivor will pause the carried Survivors Wiggling Progression for 2/3/4 seconds.