To specialize in this class, player's character has to meet the following requirements.
Level
40
You must be level 40 or higher
Class
Mercenary
OR
Rogue
Your current specialization must be "Mercenary" or "Rogue" class
Attribute
350 Dexterity
Your dexterity must be 350 or higher
Attribute
300 Power
Your power must be 300 or higher
Skill
Remorseless 1
You must have the skill "Remorseless", rank 1 or higher
Skill
Spirit Breaker 3
You must have the skill "Spirit Breaker", rank 3 or higher
Skill
Sacrifice 1
You must have the skill "Sacrifice", rank 1 or higher
Skill
Sap 1
You must have the skill "Sap", rank 1 or higher
Skill
Sword 4
You must have the skill "Sword", rank 4 or higher
Skill
Shadow 2
You must have the skill "Shadow", rank 2 or higher
Trial
Domination
You must have the item "Mark of Domination"
Trial
Salvation
You must have the item "Mark of Salvation"