Concept Skill - Thigh Slash

Its just an idea i've had for a while and i'd like your opinion on it:

Cost - 5 Adrenaline

Sword attack. Attack target foe and deal +2...15 damage. If target foe is crippled, they are knocked over. (Swordsmanship)

I'm not sure whether it should be elite or not being as its a sword skill that causes knockdown, but it would be a good skill to have to create more skills combos.

Oh, and if you can think of a better name then tell me, anything is better ^^

Crippling slash>thigh slash>gash


Looks good. May be overpowahd a bit.