Skill
PK Shield - Normal/Purple/Chaotic level irrelevant
4 levels
Level 1
All PvP Defense
Level 2
Lv. 5+ character PvP Defense
Level 3
Purple/Chaotic PvP Defense
Level 4
Lv. 5+ Purple/Chaotic character PvP Defense
Skill
4 levels
All PvP Defense
Lv. 5+ character PvP Defense
Purple/Chaotic PvP Defense
Lv. 5+ Purple/Chaotic character PvP Defense