I have a question in the describtion of the valkyrie abilities its says that she is abel to cancel her shieldbash into an high light attack or an guard break. But as often i try it i never get the timing for the guard Break.

So is this bugged ? or am i just always missing the window for it?

And to the stamina system when the valkyre, the conquerer or the Warlord go into their all around Guard in my personall opionion i think they are loosing stamina not fast enough.
It makes them nearly inpenetribal so they can just go back to that without having an high risk of running out of stamina.

It should generally be more risky of loosing all your stamina if you go into that mode because the reward is that huge of beeing comepletly immune to nearlly all attacks.

Generally i notice that the stamina system is a bit broken, with players not lossing stamina on guardbreakes and hits. And generally certain abilitys having a too small stamina toal.