Knee:
A surprise knee attack! This attack does x2 damage total. Critical hits result in the location hit taking a break.

This attack may be combined (if declared before to hit roll is made) with a normal strike, but at a penalty of +10 to hit roll for both attacks (Note: knee attacks must come first and succeed before second strike can be attempted). If the Knee attack is combined with another attack and both successes and one is a Critical, the victim must make a Save Vs Hitting roll or be Stunned for 2D4+1 rounds (- 1 round per whole 10 difference of STA roll to STA, Minimum = 1 round). While Stunned, the victim becomes last in Initiative every round, and suffers a +70 to all Skill rolls until the Stun wears off.