Finishing Blow

Finishing Blow is a rogue ability in.

Damage calculation
Because of its vague description, it is hard to find out how exactly the ability bonus works.

The exact formula for calculating the damage bonus is: Damage Bonus = 50% + (3% per each % below 50% Endurance) So an enemy with 25% of their Endurance left will be hit for 2.25 × base damage (i.e., 125% bonus damage).

The Devastating Blow talent further increases this bonus by an additional 2% of Endurance lost by changing the formula to Damage Bonus = 50% + (5% per each % below 50% Endurance)