I play zerg and im plat 1. Every match i go against terrain I usualy make hydra ling bane ultra infester viper. Everytime i get into his main just for 12 bcs to show up out of no where (this is end game and im fighting a bio army the entire game) They teleport into my main base and destroy everything i cant make hydras even with plus 3. 12 bcs destroy a maxed out hydra army. and on top of that i cant engage most of his bio armys straight up do to widow mines or siege tanks one shotting my lings. Terrain need big fat nerf nerf
Hydras are trash vs BCs, heck queens are trash too against that many. Make corruptors, use Infestors to neural, or blinding cloud your crappy hydras. Oh, and what did you THINK he was doing with all that gas and no ghosts?
I think it is all about the basics