To specialize in this class, player's character has to meet the following requirements.
Level
30
You must be level 30 or higher
Class
Fighter
Your current specialization must be "Fighter" class
Attribute
200 Power
Your power must be 200 or higher
Attribute
160 Dexterity
OR
160 Intellect
OR
160 Constitution
One of your other character attributes must be 160 or higher
Skill
Shadow 3
OR
Earth 3
OR
Fire 3
You must have one of these skills, rank 3 or higher