"Survivors receive a 2/4/6 percent Regression penalty on Failed Skill Checks for Repair and Healing actions.
Hex: Huntress Lullaby grows in power each time you Hook a Survivor, gaining 1 Token, and affecting Repair and Healing Skill Checks:

1 Token: shortens the time between the Warning sound and the Skill check by -14 percent.
2 Tokens: shortens the time between the Warning sound and the Skill check by -28 percent.
3 Tokens: shortens the time between the Warning sound and the Skill check by -42 percent.
4 Tokens: shortens the time between the Warning sound and the Skill check by -56 percent.
5 Tokens: disables the Warning sound.
The Hex effects persist until its Hex Totem is cleansed."

While carrying a Survivor you benefit from the following effects:

Decreases Wiggle effects, which cause you to strafe sideways, by 75 percent.
Increases Wiggle duration by 4/8/12 percent.

After hooking a Survivor, Pop Goes the Weasel activates for the next 35/40/45 seconds:

Performing the Damage Generator Action on a Generator instantly regresses it by -20 percent of its current Progression, after which normal Regression applies.

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.

Whenever you are stunned by a Survivor, that Survivor suffers from the Exposed Status Effect for 10/15/20 seconds.

Hubris has a cool-down of 20 seconds

Wounds inflicted by Basic Attacks cause Survivors to suffer from the Hemorrhage and Mangled Status Effects:

Increases the Bleeding frequency by 50/75/100 percent.
Increases the Regression rate at which partial Healing Progression is lost through Haemorrhage by 15/20/25 percent.
Both Status Effects are removed once the Survivor is fully healed.