Fanfiction Help?

Okay I've been posting waaay too many questions lately, but I need some help with a fanfiction I could possibly be writing.

It's a X-Men/TDI cross over titled "Drama X"
The story is going to be about Courtney and a few other campers finding out they are mutants. I'm not making all the campers mutants because that would be weird.

I can not believe I'm saying this, but there will possibly be DxC in this story O: which is pretty surprising seeing that I HATE that couple.

Anyways what I need help with.

Powers. I've figured out powers for some of the characters, but I'm stuck on Courtney. What should she have? It needs to be an active power (meaning that she can use it to fight and the use of her power is visible to others)
I also need help with other characters powers, but I'm going to let the other mutant campers be a surprise :D