The entire idea of a Zerg going all out air is that fact that he wants to control the map and that Dragoons will get overwhelmed at certain points. Mutalisks are much more flexible movement wise, and they don't need their own matrix [hence bunching them all together] since they are air units.
Well, to get to the problem here, is what if you are a Protoss player who is facing an allout Mutalisk lubbin' opponent who will soon have Guardians. The needs are simple.. Some scouts, Some Archons, Some Templars, Some shuttles :) I reccomend using 3 shuttles but a 2shuttle/ 3archon 1templar attack works well. Also, level 2+ attack upgrade for your archons helps ALOT when taking out units.
Now, I usually find when a Zerg player is pressing your main base with his forces, its smart to sneak out with a few dispatches of Archons/Templar in the shuttles and hunt his main down and totally wipe out his tech tree. I guess this is sort of a fantasy strat in a sense because you need alot of things to pull it off... but it severly cripples a Zerg player and launches his forces into dissaray. If it is done correctly, It can even win the game for you
