Perforate Artery  

Line:Critical Strike
Level:21
Realm:All
Prerequisite:In front of target
Attack:High Bonus
Defense:Medium Penalty
Fatigue:Medium
Damage:High
Effect:Bleeding
Effect Information:
Does damage to a target over a period of time. Damage per tick (every 4 seconds): 14 Damage type: Body Duration: 40 seconds

Also, this style requires you to be stealthed in order for it to work.

Per patch 1.92 (02.27.08):
- The level 21 Critical Strike style 'Perforate Artery' now has an updated bleed effect. Its effect now does 14 damage per tick.