Ideas for SC2 Buildings

[FakeNameHere]

Post some buildings that would be cool to have. One with special function and such.

 

[Warules]

A photon cannon supporter. Can get more photon range,

 

[Unknown_Being]

How about something that's Zerg that can burrow and walk around? It supplies its own creep so it can walk off the creep. It also has some kinda weapon, or soomething.