[Death by Mirrors]

Ah yes, I can see how that power would go unnoticed for a while. For most part it would seem like a "great minds think alike" scenario, until maybe she thinks hero should do something she knows he normally wouldn't, and then she's all "Whoa, wait - he really acted this much against his own idea?"

It would be fun if she influenced him at some point to do something weird because she doesn't yet realize it's her who makes him do stuff. Sort of like the "I wish your whole family would kiss my ass and be my slaves" scene in 10th kingdom, if you've been following Glitch's movie night. Some strange spur of the moment wish that has absolutely nothing to do with the overall mission.

Time travel! That's one of the powers I'd personally love to have, if only to see how life was in different eras. I don't know if you've ever seen Midnight in Paris, but I secretly wish there was indeed a stair somewhere that you could visit at midnight to have a car or carriage pick you up and bring you to a gathering that happened long ago, to meet people of the past.

Good luck to both of you, be it for brainstorming or figuring out how that story was supposed to continue ^^