Sorry, but this deck is utter cr@p, went from almost rank 1 to rank 4-5, it`s abominable.
You can only win with this if you get insanely good draw, or your opponent gets very bad draw. Way too unreliable and inconsistent for my taste

Can someone explain what is the purpose of Preparation? Why not a 2nd Questing?

Yes you can, it`s not that hard actually