Whenever you finish healing another Survivor, Teamwork: Power of Two activates and both you and the healed Survivor benefit from the following effect:

Grants a 5 percent Haste Status Effect for as long as you stay within 12 metres of one another or one of you loses a Health State.
Teamwork: Power of Two has a cool-down of 180/160/140 seconds.

Survivors can only be affected by one instance of Teamwork: Power of Two at a time.

Each time a Survivor other than yourself is killed or sacrificed, Sole Survivor gains 1 Token, up to a maximum of 3 Tokens:

Each Token grants a stack-able radius of 20/22/24 metres within which the Killer is unable to read your Aura, up to a maximum of 60/66/72 metres.
Once you are the last Survivor standing, you benefit from the following effects:

Increases your Repair speed of Generators by +75 percent.
Increases your Opening speed of the Exit Gates and the Hatch by +50 percent.
Increases the odds of becoming the Killers initial Obsession by +100 percent.

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

Press the Active Ability button while running to trigger the Endurance Status Effect for 0.5 seconds.
Dead Hard causes the Exhausted Status Effect for 60/50/40 seconds.

Dead Hard cannot be used when Exhausted.

You cleanse Totems 20 percent faster.

Gain another, stack-able 20 percent Cleansing Speed bonus per cleansed Totem.
After cleansing a Totem, the Aura of the Totem farthest from you is revealed to you for 2/3/4 seconds.

Once the Exit Gates are powered, No One Left Behind activates:

Increases your Unhooking and Healing speed by 30/40/50 percent.
Grants 50/75/100 percent bonus Bloodpoints for actions in the Altruism Category.
Grants the unhooked Survivor a 7 percent Haste Status Effect for 10 seconds.
The Auras of all other Survivors are revealed to you.

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.