fast vulture with both ion thruster + spider mine upgrade...run into the guy's base...lure a marine or zealot if they're terran of toss. Go to their workers, lay spidermines!!!If done correctly, zealot or marine will follow your vulture and will set off spider mine killing all of thier workers. If they are zerg, the spider mine will attack the larva, and since the larva is close to hatchery and drones....KABOOM!!!
This only works if your opponent doesn't have any defense...i.e. sunkens, photons....
Oh yeah, if they don't follow you, just attack the probes with vulture...they kill workers very fast
GL HF