Magic: The Gathering has become popular at the Ponyville Schoolhouse. Everypony now has a deck and are now playing this new game. However, one pony destroys all in her path, with skills beyond compare. Can anypony defeat this player?
Twilight is unable to control her powers during the entrance exam to the School for Talented Unicorns, and in order to reduce the damage caused by her power surges, Celestia shrinks her down until she would later learn how to control her powers.