[nGenLight]

Because units that have no food cost, very low cost creates a threat that requires about half your army to deal with. While the Zerg player subsequently throws cheap Roaches at your third and natural at the same time whilst they have baited your army to your main, goodluck getting that deathball up. With super high levels of insight, unit management and control, it is possible to defend well enough to get your deathball up before Zerg has a deathball busting unit composition, but this is ridiculously hard, especially on a map like XNC.

Medivacs can be dealt by mineral dumping on some zealots or making 4 stalkers to prevent a drop. Zealots against Zerg units? 4 Stalkers to target fire 20 overlords heading your way (with no idea if theres any units in there)?

I'm not saying Ventral Sac is OP or anything, but it is probably the one single feature of Zerg that drives me insane because it is ridiculously hard to really gameplan for it. I'm sure some Zerg players may have the same opinion about Blink or FF.

[Monk]

Originally Posted by nGenLight

Because units that have no food cost, very low cost creates a threat that requires about half your army to deal with. When the Zerg player subsequently throws cheap Roaches at your third and natural at same time whilst baited your army to your main. Goodluck getting that deathball up. With super high levels of insight, unit management and control, it is possible to defend well enough to get your deathball up before Zerg has a deathball busting unit composition.

Medivacs can be dealt by mineral dumping on some zealots or making 4 stalkers to prevent a drop. Zealots against Zerg units? 4 Stalkers to target fire 20 overlords heading your way (with no idea if theres any units in there)?

I would be looking at your macro if you're working towards a deathball and only have 4 stalkers when your opponent has 160 supply worth of overlords, unless you mean what you meant with the medivac.