[Archon_Wing]

Also, Phoneix's are pretty only useful against mutalisks (and other air units without an Air to air attack). Mutalisks and Vikings can fight ground. If they weren't so good against mutas, then they'd be pretty completely useless.

Not to mention Zerg can tech switch way faster than Protoss can, thanks to the new larva mechanic. Protoss must have robotics for Immortal/collosi, gateways for basic units, and stargates for air units. Zerg just need a single tech building for what they want and the larva produces a ton of whatever they want. More hatcheries and more queens just make zerg even more insane if they are properly saturated.

You simply aren't able to preemptively build phoneixes just to counter mutas; Zerg will most likely laugh in your face when you find out there was a hydralisk Den somewhere else.