After triggering your third Protection Hit, Mettle of Man activates:

While injured, Mettle of Man shields you from going down the next time you take damage.
Healing back to full health will reveal your Aura to the Killer whenever you are farther than 12/14/16 metres from them.
Mettle of Man deactivates the next time you are put into the Dying State.

Increases the odds of becoming the Killers initial Obsession by +100 percent.

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

Reveals the Auras of available Pallets whenever you are in the Dying State.
While being carried by The Killer, reaching 25/20/15 percent Wiggling progression activates Power Struggle:

You can drop a nearby, standing Pallet to stun the Killer and escape their grasp.
Power Struggle deactivates after triggering successfully.

Receive an auditory warning upon looking in the Killers direction within a 45 ° cone within 36 metres.
Premonition has a cool-down of 60/45/30 seconds each time it activates.

When another Survivor loses a Health State within 32 metres of your location while you are in the Injured State, you benefit from the following effect:

Grants 40/45/50 percent of your missing Healing Progression to your Health Bar.