Hi,
A couple of ideas
1) Intro/outro with his sister psyslocke.
2) Has excalibur sword to use as a special move
3) Good martial arts skills
4) Has a force field like magneto has for a limited time only
5) Energy beam projection from hands
6) Fast flight knocking into opponents
7) Flying superman punch
Maybe british voice/sounds
9) maybe a hyper move similar to captain america with his shield? like stars and stripes?
10) helpers?