Just randomly click on the screen every now and then, this should work quite well for you.
But on a serious note what Stallion said is generally a safe build Vs Terran go into 1-2 collo then switch into temps with storm add charge lots with 3-3 and then switch back into colo again.
I'm still yet to actually beat a protoss in a late game since the changes to EMP and changes to the cheaper 3-3 ups.
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