Help on skill strike from beyond the grave

Current upkeeper: Oya
Using time      : 5
Skill cost      : 10
Skill type      : offensive (single)
Affecting stats : Str, Dex, Level, Masteries
Affecting skills: Anatomy, Armour piercing, Focus power, Killing blow, Mighty blow, Strike from beyond the grave
This powerful attack skill is exclusively used by the dreaded Death Knights,
the undead elite warriors and warlords of the armies of Shar. It utilizes only
the main weapon, and is most efficient if the attack can be aided with a free
hand.

Strike < List > Stun