Moderately exciting for the TCG, first banned card in over 10 years, this one is almost no surprise, Lysandre's trump card or LTC for short, this card made it possible for very little strategy to exist while also being able to counter decks that rely on milling itself to win. It did also for the most part make seismetoad EX possibly far to over powered giving it an endless amount of cards to hurdle at you, welcome back night march.
http://www.pokemon.com/us/pokemon-news/lysandres-trump-card-banned/
http://www.pokemon.com/us/pokemon-news/lysandres-trump-card-banned/