the only thing that i think to be nerf is battlecruisers... they pretty much own the ground units, even the air units cant do much except corruptor for zerg, dont know about toss.. so hard to counter it if using zerg against mass battlecruisers =_=..

but then i think this only happens in practice league where i cant harrass them.. giving them chance to mass battlecruisers..

how about taking away the sensor tower? or at least reduce the radius.. it sure kills the element of suprise =_=