[AxS.Sorathez]

Hey everyone, just a random opinion seeker. Here's the scenario:

You're sitting in your chair, warming up your hands waiting for the loading screen to finish. It ends, you send your workers to mine, and the game begins. You begin building up your forces and all seems well and good, but then you see THAT unit. The unit that just makes you want to scream and tear your hair out. You begin to rage and think of all sorts of things you could say to the other player for building THAT unit, but you don't because you're a nice guy/gal. You continue playing, but still feel a jolt of anger every time you see the unit.

What unit is it?