Bob sat back. Everyone seemed to be busy, but nothing truly interesting was going on. Everyone was walking around, looking for something interesting, and yet there was nothing there, because there was nothing interesting. Furthermore, the witch and her boyfriend were duking it out in the centre of the forest, and if they weren't careful they could end up blowing up the entire area. That would be funny, of course, but only brielfly so. Bob had learned a long time ago that blowing something up is fun, until you run out of things to blow up. Then it becomes quickly boring.
Bob decides it's time for some inspiration. He opens his cell phone, and looks up a couple of good tv shows. His power to warp reality meant he could get an internet connection from any location he wished, which was quite a useful ability. Looking through the vast library of attrocious crap that currently dominated Hollywood's output, Bob stumbled upon a gem among the the digitized feces. Beautiful. His mind brimmed with ideas. This was a great way to amuse himself!
Bob gestured, and pain shot through him. Not pain from the mind, or pain from the body, but pain from the soul. True pain. A small part of himself, a fragment of his massive soul, slowly detached itself from the Chaos Shard that was his origin point. In his hands, a small ruby appeared, in the shape of a skull. Those who would have gazed upon it would find it filled with all the colors they could imagine, and some of their greatest fears reflected within the red crystal surface. Bob flung the gem up, and it glowed as it flew ever higher into the atmosphere, coloring the air with a shining red trail. "Ladies and gentlemen, prepare for a surprise!" As Bob finished his announcement, the gem crashed to the ground at some point near the middle of the forest, forming a crater, as well as sending a wave of red energy through the entirety of the forest, as well as under the ground.
The ground rumbles and trembles, as thousands of hands dig through it. Old bones, forgotten by time, rise to unholy life. Decaying corpses from wars that none would know of, claw their way onto the surface. Flesh grows onto their mangy forms, and features are restored, up to an extent. The perfect amount, as thousands of rotting, decaying corpses claw up, each with the red gleam of the Death Gem in their eyes. A dragon, who had lain here for over a thousand years, rises from it's slumber as a dracolich, dressed in frozen flames. The sky itself turns dark, the sun red, as Bob's zombie apocalypse begins.