Speed: He becomes fast and has a lot of agility

Wind Amour: Because Nightmare has incredible speed, the wind around him serves as armor. However, the wind armor disappears when he slows down.

[Nightmare] Recently updated, his brother now controls and has made some dark deal with Nightmare, nightmare will switch frequently and his powers are, manipulating dreams, dark energy, red eyes and he wields a one sided sword. He can also mirror the abilities of others

Gamma Ray Energy: He can manipulate gamma rays aka energy. (It is radioactive if injected into body in any way and you will be posioned for a while and put in shock unless you can counter it), using it as a shield or to use offensively. (green when normal, orange and black when in even darker form)

Martial Arts: He is skilled at martial arts

Sword: A one sided sword that can use energy and is a very strong blade made up of a different metal that was forged by his father but no one knows what it was made out of (Brother desummons it when he switches)

Darkness: When using his trump card, becoming a nightmare, he can give you nightmares or change your dreams if u fall asleep or something... dont daydream then!! Also he can use darkness to hide and attack u with it

He becomes tired after a while, his stamina doesn't last forever
His brother will just injury you heavily and leave you
Strong physical one on one fights. If you can match his power then maybe u might beat him on a one on one martial arts fight
Everyone grows weary at some times and also Nightmare feeds off negative energy. So stay positive!
Speed. If u can match his speed u might win
He has tried to become human and grow a sense of humor. Depends if he likes u he wont go all out

Real Name is still a mystery
OUTDATED STORY
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Nightmare was a smart kid, he gained friends easily. But he was always under stress. His mom was no longer alive. He only had a brother, Nightmare, he was named the same name as his brother. His father had been doing illegal tests and one day, Nightmare and his brother had walked into the room. Being alarmed he accidentally shot Nightmare's brother in killing him, Nightmare didn't know what his dad had used. But it had also affected Nightmare, he past out. When he woke up, his brother was dead and his dad was also dead. All the lights were smashed and he was confused. He felt another presence and it was his brother's somehow he survived but only in Nightmare's mind. They could both see what Nightmare's was doing and his brother could only control Nightmare's body when he was in danger. His brother had been changed in a way when he died physically, whenever Nightmare was in trouble and they switched, his brother would kill the person that was hurting Nightmare. Because of that, Nightmare lived far away in the plains by him and a few other people near him. Before he left he made a few weapons from his father's workshop and left. He also discovered that he had powers and he was taught those by his brother.

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