Phantom Beast

Millions of years ago, there existed a beast of absolute power. This beast was named the Phantom Beast. It tried to destroy what the two atoms had created, but failed. The energy then locked it away. After the path to the parallel world was created, the beast saw it's chance to return back to the parallel world. When Nick finds out it has returned, he conducts an experiment to gain muscle growth so he can fend it off. In the middle of the experiment, the beast flies in and infects it's evil in Nick. The beast has a power to infect people with evil for a short amount of time. However, since Nick was conducting the experiment, it kept the beast in him. Nick then uses his mind control device to take control of it. It then uses it's negative energy to infect Nick's creatures.