Energy is universally used across every format since the effect never changes
It goes without saying that big-impact creature cards are going to have a premium price tag, and that is definitely true with dragons
Mega Evolution cards work by being played on top of a matching Pokmon EX, temporarily transforming it into a more powerful Mega form with higher HP and stronger attacks, but allowing an opponent to take extra Prize cards when it is knocked out
All of your Inventors become difficult to deal with once Hiro Hamada, Team Leader, and the Institute of Technology come into play, and if you ever fall behind on the board, Cri-Kee, Lucky Cricket can help you instantly turn the tables
As for something else to play, why not drop in on the best board games