Swarm

Yea been trying mutas and can typically outrun them. They usually hit me with a PDD so I can't even kill them and that's stupid. Haven't tried Viper though. Maybe that could help given how expensive ravens are, kills are expensive. Infestors seem to be good but I really think fungal needs to be range 9 to be effective. Plus they tend to turret and kill my infestors off. :(