This is high diamond/early master league.
My problem: Toss has few units, and they need to be gathered in 1 spot, when the terran hits with his MMM ball early/mid game - you can't just place 4 stalkers in the mineral line, without knowledge of where the opponent army is - in case he hits elsewhere.
So, I spot 3 medivacs soon dropping in my main and my expo, so I move half my army to protect the main and leave the rest at the expo. Which units should I send? Zealot, stalkers and immortals are either too fragile or too slow alone and are immediately kited and killed off by marauders/marines.
Which units do you send vs. a drop, and how do you prepare as you see a drop coming in? You have literally seconds until they drop in your mineral line.