Help on skill shadow kick

Current upkeeper: Satael
Using time      : 1
Skill cost      : 19
Skill type      : offensive (single)
Affecting stats : Str, dex
Affecting skills: Kick, Shadow Mastery, this skill
Shadow kick is the  culmination of the notorious annihilation technique. 
It usually takes the form of a combination of multiple kicks depending 
on the user's mastery and power. 

Shadow fingers < List > Shadow mastery