StarCraft 2 Beta Patch 2!

The overlord is what can spew creep once you get a Lair. I don't think Overseers can.

I wish I was at home so I could pop the beta open and tell you for sure haha.

 

Yeah, Its the Overlords that can spread Creep. They are able to use the ability automatically once you have a Lair. Strangely enough, I don't see(from streams anyway) a lot of people using this or the Creep Tumor ability. Either people have not worked it into their play, or its not worth the risk to the Overlords, or the time it takes to make a road of Creep with the Tumors.

 

I use the Ovies to connect the main base with the expo and surrounding locations. Faster units ftw. Also, it helps get the queen to each base for it's vomit ability.