Almost entirely like the normal knife except it has a new "Terror" Meter.

Every kill earns you more "Terror" which allows you to tank damage unharmed as long as you have "Terror" left.

It depletes based on the damage you take and the ONLY way to refill it is to get kills with the weapon, a backstab earns 50% whereas every otherwise kill (excluding assists) rewards only 15-25% charge.

At max meter it allows you to tank a full 120 HP but has no other secondary effects, and as long as you have any "Terror" meter every damage source you take will deplete the meter and give you the rest of the damage accordingly if whatever damage you take exceeded what "Terror" you had left.