I've purchased several of the dragon art cards from Tarkir, and when they are in your hand they look fine, but once they go into gameplay they get a black border that shouldn't be there.

So the Tarkir Dragonstorm has an alternate art with a Dragon-like border, and I've purchased several of those
for my deck. If I'm not mistaken it was fine before the Final Fantasy update. When the card is in your hand or when you inspect it,
it looks correct with the border art and all, however, once you cast the card and it's on the board the outside border becomes a black
line. I've checked to see if it would happen on another device and it still happened.