Before time began, there was the cube. We know not where it comes from: only that it has the power to cause anger, and fuel this anger with hatred for everything else in the world, for so being able to turn so many colored squares to make a uniform set is all but impossible for the most gifted students.
The Earth Ponies greatest enemy...THE CUBE...for years earth ponies have struggled to master the intricate turns and twist of the devious device and have failed. Not gifted with wings that act as fingers or magic, the earth pony will try and fail to master...THE CUBE!!!