SC2Mapster

This model is the Nydus Taenia, a possible evolution of a Nydus Worm if you don't want to use its function as a transport channel. It's created in the closeness of the Nydus Network and with additional resources it becomes independent from it. It can also be filled with units like an Overlord, then burrow in one place, move underground and unburrow on another place, releasing quantities of units to defend it while it is reunited with the original Nydus Network.