Ambush

Ambush is a Nightblade Class skill, found in the Assassination Skill Line. A gap closer ability.

Ambush
3213 Instant Cast Target: Enemy Base Skill: Teleport Strike
Flash through the shadows and ambush an enemy, dealing 1438 Physical Damage and afflicting them with Minor Vulnerability for 10 seconds, increasing their damage taken by 5%. Also grants you Empower and Minor Berserk for 10 seconds, increasing the damage of your Heavy Attacks against monsters by 70% and your damage done by 5%.

Ambush is a morph of the Teleport Strike base skill. The other morph is Lotus Fan.