Build up momentum for 20 seconds. While active, hit with 4 light or heavy attacks to turn this into Assassin's Will and fire a spectral bow to deal Magic Damage. Also grants Minor Berserk, increasing your damage by 8%.
- Unlocked at Assassination rank 42.
- Update 6: This ability allows you to fire a spectral projectile at your target, dealing magic damage.
- Update 2: Incapacitate: This ability now increases heavy attack damage.
- Update 3: Incapacitate: This ability now has a visual effect when an enemy is immobilized.
- Update 6: This ability has replaced Haste in the Assassination tree. Any experience gained in Haste will now apply to Grim Focus.
- Update 6: When Grim Focus is activated, all weapon attacks will do additional damage for 20 seconds. Using light attacks or heavy attacks while the effect is active will grant a charge. When you gain eight charges, Grim Focus changes to Assassin's Will.
- Update 7: The bow on Assassin's Will is now easier to see in first-person view, and can now be activated after 4 light attacks instead of 7.
- Update 8: Using a number of abilities, including this one, will now cause your weapon to unsheathe.
- Update 9: Fixed an issue where the weapon visual effects from abilities such as Grim Focus, Siphoning Strikes, and Expert Hunter could get visually detached from the weapon.
Community content is available under CC-BY-SA unless otherwise noted.