[ROOT`iaguz]

There's no one trick. It's just how standard play works. Bio + ghost is the best way to handle it, preferably with enough ghosts and good solid emps he can't get a single spell off and the archons just pop. That requires a lot of emps an good control. Get cracking.

There is a timeslot where protoss is 'weak'. It's before he adds colossus to that army. I put weak in quotation marks because he is not actually weak but if he does get to do that then god save you cuz nothing else will.