Nightmare

Nightmare is an Umbrarevian from the planet Umbrakinesis.

Appearance
He has the same look throughout all the series. He has a black hood, no legs, two hands, red eyes, white stripes from  his chest till his waist, and if he takes his hood of you will never forget the most scariest face in the  world and you will have nightmares about this face.

Weaknesses
If nightmare is battling in the day he must battle with his hood on or else he would burn.