This spells durration is insane. Yes I know there are lots of counts to it, but if you get hit you will be stunned for so long that you are almost certain to die. I suguest lowering the durration.
Well, it also has a -4 vs any other race but your own. Not sure but if it's a mind spell it can be blocked with PfA.
I think it can be blocked. But the durration is insane. That is the problem. Its basicly. If you fail your save you will be stunned untill your dead.
It has it's drawback of -4 vs other race a penalty of the like few spells have. Also as stated, it's pretty easy to block.
It also lasts, I believe, ten times as long as hold person despite being a low level spell.
At least, it goes that in the granary!
The spell is prone to bugs that are annoying to the extreme, but I don't think can be fixed. (if under the influence of this bug and you go below 0hp or it is dispelled...[shrug] bad things happen)
That said, revertng it to ONE ROUND per level is more reasonable.
It's bugged, simply as that. No further lengthy discussion required.
Will be fixed when someone gets a chance.