The revolutionary Mega Evolution game mechanic is coming to the brand-new Pokemon TCG: XY expansion! Mega Evolution Pokemon evolve from Pokemon-EX, extremely powerful cards in their own right, creating a force that will change the way Pokemon TCG players build decks and create strategies for battle.

Before playing a Mega Evolution Pokemon to evolve a Pokemon-EX, players must consider the situation carefully-doing so ends their turn immediately, which means they can't attack that turn! The risky move is worth the reward, however, because Mega Evolution Pokemon exhibit a strength that surpasses that of Pokemon-EX. Hard-hitting attacks and high HP totals make Mega Evolution Pokemon dominant during Pokemon TCG matches.