"Alright Nanos, do your stuff!" The Nanos begins to work overtime as your arm turns into a giant hunk of machinery. Tools pop in and out, wires and metal pieces swirl around. The deadites make their way closer, forty feet, thirty feet, twenty feet. You start to get nervous. Your arm looks like a small car engine. "Come on Nanos!" Ten feet. The deadites smile as they realize they're about to kill you a second time. "NANOS!" Seven feet. "N A N O S!" With that a purple wave of energy blasts out of your arm, it covers an area thirty feet wide and slices all the deadites in half.
"Groovy." You stand triumphant against a horde of the dead without even breakind a sweat. Isn't technology wonderful?