This unit is the first warrior unit of the Zerg Swarm.When you spawn an egg 2 zerglings born.The cost of two zerglings are 50 mineral.If you use them wisely a zergling army can harm any civilization easily and rapidly.Here this little creatures are very fast and also they use the advantage of outnumbered armies.You can use these units at any age of the game of course you must do its upgrades or you will loose lots of zerglings before your eyes..