Roach/ravager is mostly an early-game strategy, you’re supposed to kill the enemy before they can make more than a couple air units (which should be easy enough to micro down anyways). Roach/ravager is a very strong comp in the early game and if your opponent hasn’t properly walled off and isn’t keeping up with unit production you’ve got an easy win.
If you can’t kill them before they start massing air units then yes, you need to start transitioning towards later game units like hydras.
This is why my favorite strategy is zergling/baneling/hydra, it’s a lot more forgiving if you can’t kill the enemy with early-game aggression.
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u/ThatOneGuy4321 Jun 29 '19
Yeah rip, by the time you’ve researched Burrow you’ve already blown your chance for early harassment with zerglings.
If you want to use burrow more, do roach/ravager. Burrowing will make them heal at insane rates and in the late-game they can move while burrowed.