Nightmare is really powerful, he have good tools, but he is not broken or something. You can easily win against him if you know the character and how he moves.
8WAYRUN.com
Aven Kujo-Gin
Robert_J_King
I don't mind him. Now that I am more comfortable fighting him, it's more of a mind game and mix up thing than anything else. Stepping/evading for a preemptive strike helps too.
Ishimaru Jinrai
I actually really like playing Nightmare over any other char since I main siegfried, I always get the most epic matches vs Nightmare! =3 one of my favorite players to play on Xbox is Chrono Orosko one of the best NM players I ever saw..