Hey all,

I am having some trouble understanding how our skill "Pushing Hands" works exactly.

Does it, for example, mean that when I use this ability on a warrior mob who is in def stance, I push him out of it and leaving it with...yeah with what? And how long does it last?

Would be great if someone could enlighten me

If you want a quick view on how efficent it is, duel with a stance using character (or normal pvp if that's your type of server). You'll quickly notice that no amout of pushing hands will actually remove the person from a stance, nor lower the effect of it in the case of scaling stance such as that of a ranger or bard.
By the same token, the time it has taken to spam pushing hands on a mob in something it claims to be a stance and the buff finally fades, it could just aswell have expired naturally.
The only use for it currently is to loose excessive endurance and give you a global cooldown.