The creature helps you ramp with your creatures, while the backside helps to cheat out creatures and planeswalkers from your library for free
The Final Fantasy Starter Kit has worked on me like a charm, drawing me into the brilliant world of Magic the Gathering, one that I now find myself fully immersed in
You can use Yuna, Hope of Spira, to reanimate them for free with a finality counter, or Rydia, Summoner of Mist to reanimate them by paying their mana cost
In the image, which you can see below, it looks as if the Princess is carrying a Keyblade
In the absence of cards like [casthaven]Stifle[/casthaven], [casthaven]Wasteland[/casthaven], [casthaven]Force of Will[/casthaven], and dedicated hosers, I have no idea how Modern decks can fight them, other than by playing a version of Eldrazi designed to break the mirror (or perhaps [casthaven]Painters Servant[/casthaven] is a stronger hoser than it appears)