Pokémon X and Pokémon Y

5th Gym is a Dark-Type gym.

That settles it, it's fake.

EDIT: Interestingly, there are 2 half TCG decks coming out in Japan based on Xerneas and Yvetal.

The Xerneas deck comes with a holo Xerneas and Clefairy
The Yveltal deck comes with a holo Yveltal and Pancham.

Considering that Fairy-type cards are being introduced in this expansion, I find it odd that Xerneas and Clefairy are both included. I'm guessing that means Clefairy IS being retyped as a fairy.