Open Foe Bonuses accounts for bonus damage dealt when the target is backstepping, staggering, or missing its attack. This lands for between 20% to around 70% bonus damage. You can tell when you're getting a bonus when blood spurts out of your target. The amount of blood is roughly proportional to the bonus.
Ways to increase Open Foe Bonus
- The Finestrike Blood Gem
- This mechanic is the spiritual successor to "counter-damage" in Dark Souls.