[Baalz]

Don't forget to leverage your nice PD as well. Androphags firing from behind moderate PD means he has to close, then kill you PD, then close, *then* kill your Androphags, taking poison damage the whole time. Add in some skellispam, which has a chance to build up critical mass while he's chewing through your PD, and he'll take very heavy casualties before he can inflict a single one to you. Don't want to repeat what others have said, but the name of the game is delaying him, and you've got tons of options.