-Remove the ability to hit air all together (Should have been done in beta but w/e)
-Increase build time
-Increase Mineral usage AND Gas
However I am torn about its damage output... I mean 1 blast does 125?! This means a Roach is damn near dead, a stalkers is no where to be seen not that I care, although, poor roach >_< So you get the picture I am just a WoL Plat Terran so all of these suggestions are probably terrible...