[@Goliah]
We're happy to have you.

The only major rules in regards to characters, besides the godmodding that you mentioned, is that they should all have a weakness that removes them of their powers. The more powerful the powers, generally the easier it is to be affected by the weakness on a daily basis.

Dragon Heart, for example, is actually fairly versatile and strong.  And as such, his weakness could happen from a random fangirl (or fanboy, really).

Traveller (who I've made my PC), can't operate her abilities above three stories from the ground.  Meaning she also can't open doors any higher than that to begin with, though she could still switch stuff from above that height if she was below it.  That's a pretty common thing, considering this is Manhattan.

I hope that was clear, I'm not always the best at explaining things clearly.