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.

Reduces the volume of Grunts of Pain while in the Injured State by 25/50/75 percent.
Iron Will cannot be used when suffering from Exhaustion, but does not cause the Exhausted Status Effect.

After hitting a Great Skill Check while repairing or healing, Hyperfocus gains 1 Token, up to a maximum of 6 Tokens
For each Token, the following stack-able effects are applied:

Increases the Skill Check Trigger odds by +4 percent per Token.
Increases the Skill Check Rotation speed by +4 percent per Token.
Increases the Skill Check Bonus progression by 10/20/30 percent of its base value per Token.
Hyperfocus loses all Tokens when succeeding a Good Skill Check, failing a Skill Check, or if the action is interrupted by any means.

When within 6 metres of a carried Survivor, the following benefits apply:

Grants a 5/6/7 percent Haste Status Effect.
Increases the Wiggle speed of the carried Survivor by +20 percent.
Survivors can only be affected by one instance of Breakout at a time.

Your presence psychically projects itself to those in danger.
Whenever another Survivor is injured, they can see your Aura when within 32/64/96 metres of your location.
You heal other Survivors 10 percent faster.

Unlocks potential in your Aura-reading ability.
The Auras of Breakable Walls, Pallets, and Windows are revealed to you within 24/28/32 metres.