Have you ever been rushed by mass zealots? most nebis are like oh dear, zealots are SO strong!. they are the ultimate rushing units! but really! only nebis going mass zealot rushing. If you are zerg, it is very easy! all you have to do is bring an overlord in front of ur entrace to see if the zealots are coming. then u make about4 - 5 sunkens. and about 20 zerglings. that defense is enuf to deafeat like 20 zealots! some nebis reading this is like... what?! 5 sunkens vs 20 zealots, no way! Zealot will win. WRONG! you will need to learn how to micro manage, use your 20 zerglings to plug up the zealot's path. letting the sunken colonies to long range the zealots for free hits. Zerglings are cheaper than zealots. its a good deal even if your zerglings die. and remember! Zealots have no range. melee attackers. u can build buildings like hatcheries! infront of the sunkens so the zealots will have to walk ALL the way around to attack your sunkens. HAH. then say "BURN!!!!" when u kill their offense. :)

and plus some dumb nebis protoss players will just keep making waves of zealots thinking they might break thru... but they wont! just make sure u have about 4-5 sunks. tight formation, with zerglings to plug up. Zerglings are the most important thing most nebis misses. If the protoss player keep sending waves of zealots, just quickly get mutalisk.

CreepColony's Opinion: Even though this strategy may work, sunkens are definetely not for Zealots, since they do explosive damage and zealots are small. Lurkers are far more effecient against zealots than sunkens.