is it possible to kill such a mix when your zerg? the first thing i thought was broodlords but the stalkers can just blink right under them and snipe them out but maybe ultralisks could do the job... (oh why didn't i think of that before.... ) *doh*
Probably would want a mix of roaches, hydras and muta's. Roaches to soak up the damage, with hydralisks behind to do the most damage. Flank the colossui with your muta's and snipe em as fast as you can, then see if you can move your muta's and take out their economy or something sneaky like that Also, if you manage to take out the colussi, you can switch to cheap zerglings to mop up whatever is left of the stalkers (providing you have a strong economy and have expanded which is what zerg is all about).
Ultralisks do wonders against Stalker Colossus. Both are armored units and thus take bonus damage. Another option is a standard roach/hydra army with some corrupters to kill the colossi. Can also neural parasite the colossi if you wanna get fancy. Another option is a standard roach/hydra army and just hit them from a couple sides. It isn't a great option but if you can split your army in two and hit them with both equally: 1) The collosus' splash damage won't be as effective as there are less units massed in one spot. 2) You can have all (or at least more) of your guys shooting him than you can if you just massed.
If you want to be crafty, try Brood Lords, some typical land army mix, and banelings. Bury the banelings under the broodlords, have the broodlords attack and the stalkers blink under and the banelings blow up on the stalkers. Then your random land army just goes around killing stuff
Ive suggested in a similar post to use Infestors. Neural parasite the colossus to work for your favor, however you have to make sure your infestor travels with your army. That big tentacle screams "KILL ME" if there isn't a lot going on.
I agree if the enemy has just massed stalkers and colossi, ultras would actually be pretty good. Most of the time Immortals are present though which can make things pretty tough. Mutalisks do fairly well versus Stalkers in 1v1 though - you could literally just mass a ball of Mutas if the enemy only has Stalkers and Colossi and do well.
I aggree, mutas would b your best bet to quickly take out the colosi, as far as the stalkers use lings / roaches / hydras.... once the mutas are done with colosi move them to your opponents base and try and cripple his eco
