How to take down mass bc's

I go BC's alot and I can tell you, the most devastating thing is getting statised and Maelstrom

To bad that malestrom only works on biological units....

Anybody think if i combination of templars and archons would be any good? The archons go in and take the blunt of the bc's cannons, while the temps stay back and just storm the shit outa those gargantuan units.