I think I'm game for this, as an OC. One of three powers. 
1) I have a character that is basically the unknown daughter of Venom. As she is developed, she becomes infused with the symbiot, so it's not two entities, just her with living blood. I've played her as a budding x-man before, and kind of miss it.
2) someone like Kitty Pride, but who turns into a ghost. (Possession, telekinetics, normal ghost story stuff) 
3) control of shadows and darkness, including making them solid. 

I'm assuming since I'm still seeing this, you're still taking?