Inspired by Heart of the Cards.

Everything was almost peaceful within the magical land of Equestria, key word: almost. Two days before the Summer Sun Celebration, a bunch of strange cards started appearing out of nowhere all over Equestria, and some of them started making ponies go crazy, it warranted enough attention for the princess to get to the bottom of this. Princess Celestia, ruler of all of Equestria, decided to conduct her own investigation on these cards, after casting a unique spell, she accidently pulled a human named Yulo Shinsetsu from his home world called Earth and told her about the card game from the strange cards, Duel Monsters.

She immediately enlists his help in stopping these incidents and protecting her subjects from any further harm, he is hesitant at first, but agrees after Celestia promises to find a way to send him back.

But little do they know is that those cards are the least of their problems, especially when threats from Equestria's past come out of the woodwork...

Author's Notes:
This fanfiction will introduce a new Duel Disk design I came up with and are planning to build.

This story is not canon to Heart of the Cards, this is merely a bout of inspiration come to life.

A personal note to AspirantWriter, the author of Heart of the Cards, if you believe that I'm ripping off your story by writing this, please PM me with your concerns, and we'll try and work something out that'll separate our two stories from each other and prevent copyright issues.