Answers: 1
Accepted answer: no
Accepted answer: no
I've played a couple of games in HOTS multiplayer where Swarm Host have been used against me. When there are only 4 or 5 host the locusts can be killed before they do damage (TvZ), where in the gameplay examples from Day9, where there are 20 or so, they provide free kills as you don't pay for the locusts.
How many hosts should a swarm host host in HOTS?