Your ferocious tenacity in dire situations allow you to benefit from the following effects:

Increases your Crawling speed by 30/40/50 percent.
Grants the ability to crawl and recover at the same time.
Reduces the volume of Grunts of Pain while in the Dying State by -75 percent.

Increases your Altruistic Healing speed by 100 percent for the next 30/60/90 seconds whenever you rescue another Survivor from a Hook.

Whenever the Killer reads your Aura and for the same duration as they do so, Object of Obsession activates:

The Killers Aura is revealed to you.
Increases your Action speeds in Repairing, Healing, and Cleansing by 2/4/6 percent.
If you are the Obsession, your Aura is automatically revealed to the Killer for 3 seconds every 30 seconds.

Increases the odds of becoming the Killers initial Obsession by +100 percent.
The Killer can only be obsessed with Survivor at a time.

While standing in a Locker for 3 seconds, Head On activates:

When performing a rushed action to leave a Locker, stun the Killer for 3 seconds if they are within range.
Head On causes the Exhausted Status Effect for 60/50/40 seconds.

Head On cannot be used when Exhausted or when you have accrued Idle Crows.