Xireon finally stood, pulling his cloak tighter about him as he stepped back from the rotting, decayed corpse. Either by design or a bizarre twist of fate, a cold wind blew sternly through the city square at that moment, pulling the garment closer still about the Wraith's sickly-thin form.
Spontaneously, the corpse before him began twitching, as if by some sort of reverse rigor mortis; shaking violently still, it began to crawl to its feet, springing freakishly to 'life'. It took a step, unsteadily at first, then with more confidence. Grunting ferally and swiping at the pieces of dead flesh which hung from his bones, the creation, the monster, stood still at last.
Xireon turned back to Zerxes, whatever emotion he may have had hidden behind the mask of the collar which covered half of his face. "Like that," he said, quickly glancing around the corner. More security forces were heading down the street in armored speeders. "Each of these buildings is filled with life," Xireon observed. "They are hiding. Expecting their pitiful armies to save them."
The Sith nodded to the monstrosity before him, and quickly, the corpse turned and ran towards one of the many dead bodies littering the square, leaping upon it, biting and tearing. Blood and saliva made their way into wounds on the corpse, and in seconds the monstrous creation had moved to the next.
And so the true nature of the spell came to light; not a passive reanimation, but a virus of some sort; the corpses violated by Xireon's beast decayed and rotted just as the original had, slowly getting to their feet. In moments, at least a dozen of the corpses stood, grunting and growling. Finally, the speeders of the city's defensive forces slid into the square, armored officers leaping out of them and training their weapons on Xireon and Zerxes.
"And we're off."