How am I supposed to counter this army of his - Stalker / Zealot /
Archon / High Templar ? How should I deal with his army as zerg?
I really think the other answers here are bad so here's my take on the situation.
Zerg vs Toss is very tricky because its very timing based. You dont want to make a single unit until you econ is set up. Don't have enough econ you loose. Don't have enough army you loose. So scouting and memorizing the list of toss timing attacks is very important.
The first sign of a Stalker/Zealot/Archon/High Templar is usually a 2 base timing that can be scouted by very early natural gasses. Early gasses indicate tech which should trigger you to be really greedy. Make a pair of lings and get your 3 bases saturated asap. Not making units seems a weird way to counter an all in but having a massive econ for when you do start making units is super important.
Make sure you send in overseers around 7:00 to see what it is. There is a immortal/collosus allin and stargate allins and blink stalker allins and all sorts of shenanigans the toss might be up to.
These all ins can be broken into two catagories.
- Anything templar tech based <-- The build in question
You cant reliably hold these things with lair tech which is why scouting is so important. You should go for mutas, swarmhosts, or roach hydra.
Against robo tech, mutas are the best counters, swarmhosts are pretty good, and roach hydra is good if you get vipers out and have good control.
Against templar tech mutas are pretty good if you are good at handling base races. Let your 3rd die spine the hell out of your natural and keep running out of storm. Roach hydra works pretty well to but is really micro intensive and requires a lot of focus. Its really hard to macro properly behind proper roach/hydra usage and if you mess up once too hard your army melts.
What you want are swarmhosts behind a wall of spines. Make as many hosts as your gas will allow a ton of spines and a few extra queens to inject the spines and you should be golden.
- Blink Stalker
- Immortal Sentry
Low tech allins can be crushed with lair tech. Roaches, roach ling, ling hydra, and roach hydra work all really well. These compotitions rely on your massive 3 base econ to be overwhelming so keep injecting and make sure you have good creep.