Zapwave is a character I came up with.

Zapwave's bio:

He's been mistakenly accussed of being a ghost who can take up multiple forms. He's actually the result of human DNA being fused together with dark matter, as part of a secret experiment. Unfortunately, the experiment went horribly wrong. It was successful but at the cost of loosing the lives of most of the scientists who created Zapwave. Zapwave never was human... he had always been the dark matter that was fused with human flesh, thus creating him a body of dark matter. Thanks to the dark matter that he's made of, he has become a shapshifter. He can turn into anyone and anything. He could be anywhere at anytime. To make matters worse, after the experiment was a success, Zapwave went beserk and killed most of the researchers who created him, and he did it nice and slowly, laughing while he did it... And to make things even more worse, he's a deranged lunatic who's out for blood and he can morph his hands into any weapon he chooses. Whether it be a gatling gun, a mallet, a sword, a flail, a flamethrower, a drill, anything that can be used as weapon, just name it and he can morph his arms into it. He's been known to be able to destroy citys in the most horrible way possible.... By morphing his hand into..... a black hole.... He can only morph his hands into a black hole IF he can build up enough strength.... But most of the time.... He enjoys finishing off his victims slowly and painfully. There's no reasoning with him. If you offer him something he may enjoy more in exchange for your life or the life of somebody you care about and he takes it, then watch out, for he'll just come right back after he gets it and kill you or the person you care about. He's just that sick and twisted, but that's because he's got a mind of dark matter... He can also generate electricity in his hands when need be, he considers it a bit of a backup defence when his dark matter powers are too low in energy for him to use, but watch out for his powers will get that energy back, and fast.... The image shows just what his powers are like, but beware... When things get a little tough for Zapwave, he'll start pulling out the big guns, by morphing his entire body into something dangerous, like an old civil war cannon, a tank, a fighter jet, a missile launcher, or even a dark matter tornado. And if he touches you with his dark matter then he may have that dark matter eat away at your flesh until there's nothing left... and by nothing I mean nothing.... As if the flesh wasn't even there in the first place..... The best way of fighting him is to blast him with postivly charge electricity, for Zapwave's electricity is negatively charged, making it more dangerous and a whole lot more destructive... Another good way of dealing with Zapwave is to just run... Run away from him as fast as you can... Zapwave is a force to be wreakoned with.