Over the past few weeks, the Internet has been ablaze with not just the newest set, but the next “block” or “era.” What exactly are “Mega Pokémon” and how have they made a great impact on the TCG?

These three sets are commonly referred to as the “e-Reader sets” in English TCG circles. They are notable for their wide borders (to accommodate the dot codes) and uniquely stylized artwork. But where did they come from? And what was used to “read” them?