When you kill an enemy, gain 5 Stamina instantly and an additional 7 Stamina over 7 seconds, stacking up to 5 times.

Each Melee kill grants 5% Melee Damage, 5% Melee Speed and 5% Move Speed for 3 seconds.

+ 12% Move Speed + 15% Sprint Speed When you take damage, you lose the benefits of Run like Hell for 3 seconds.

Heal 1 Temporary Health whenever you kill a Ridden within 2.5 meters.

Melee kills heal 1 Health and 0.1 Trauma.

Melee kills heal 1 Health to yourself, and teammates within 10 meters.

Melee hits cause the target to take 3% increased damage, to a maximum of 15% increased damage.

Melee hits that destroy Armor have a chance to create usable Makeshift Armor.

+ 8% Move Speed

Each Melee swing grants 5% Melee Speed and 5% Melee Stamina Efficiency for 6 seconds, stacking up to 10 times. Your Melee Attacks no longer stick in tough enemies. DISABLES: Aim Down Sights

Melee hits always Stumble Ridden the first time they are hit. This effect can only occur once per target.

Melee hits cause the target to deal 3% reduced damage, to a maximum of 15% reduced damage.

While crouching you neither take nor deal Friendly Fire damage. + 10 Health

Gain + 10% Damage Resistance while you have Temporary Health.

+ 15% Damage Resistance + 10 Health DISABLES: Aim Down Sights

+ 10% Damage Resistance + 5 Health - 20% Stamina Efficiency