Grim Focus

Grim Focus is a Nightblade Class skill, found in the Assassination Skill Line.

Grim Focus
2700 Target: Self
Focus your senses for 40 seconds, increasing your Weapon and Spell Damage by 60 with every Light or Heavy Attack, up to 5 times. While active, hitting an enemy with 5 Light or Heavy Attacks converts this ability into Assassin's Will, allowing you to fire a spectral arrow for half cost to deal 4182 Magic Damage, and healing for 33% of the damage dealt if you are within melee range.

Grim Focus is a Nightblade base skill. Its two morphs are Relentless Focus and Merciless Resolve.