Warning:Get ling rushed and your dead
-9 drones
-overlord
-3 drones
-hatchery and pool (put it so you can pin w/ sunkens)
-3 drones
-2 creep colonies
-2 drones
-2 sunkens
-hatchery
-once you have 14 drones (look upper right) extractor 4 drones ea.
-non-stop drones from here
-2 sunkens
-Lair
-extractor 4 drones ea.
-spire
-9 mutalisk for defence (attacking is optional)
-upgrade ling speed
-queen's nest
-hive
-4 hatcheries 2 evolution (upgrade carapace and ling hit)
-upgrade fast hitting for lings
-defiler mound -mass lings and 4 defilers
-dark swarm enemy units that can attack you and send in Lings
(Note: When Lings are in the Swarm nothing can hurt them, also you can try to put a canal in enemy zerg base if you want/try. This strat also works with fast guardians. Don't forget to expand though!)

CreepColony's Opinion: Micro is important, and to get energy quickly with defilers, consume your zerglings, and dark swarm doesn't make zerglings completely invincible; they can still get hurt by other melee units, spells, and splash damage.