If you were expecting an ordinary 1x1... Well my idea isn't one.
Shifted, or Duality, however you want to call it, is quite the unusual RP in fact, the idea is based around two Grimoires without names, one with a white cover, and one with a black one.
You may call them whatever you want.
Two people will be given each of these grimoires, and almost all but the first page are illegible, and this first page says.
The end of the world is coming
Only the opposites can save it
Now each of these people must seek out the other, because if the books do not unite, the world will end.
However when each of the people use one of the abilities of his book this affects the book of the other, this might be a hindrance, or a clue to finding them.
Now you see this RP is more of a synchronized storytelling session then an actual 1x1 RP, but still it falls within the genre. As its said the goal is to find the other book, and then- Who knows. The only thing that is certain is that if the books do not meet, the world will end.
Oh also the books...
White - The book can recreate destroyed objects, heal, even revive.
Black- The book materializes as weapons, destroys and is even capable of sucking life out of living things.
This means that the character wielding the White book might even become greatly known, and that the character wielding the Black book can become quite an evil person, its all up to the choices they make, as for the effects the books have on eachother... Well I'll leave that for the RP.
Besides this the setting is open to discussion; Modern, Fantasy, Medieval, even Sci Fi will do.