The beauty of the game is that it can be played together and thus has been translated on a global stage
This new creature has the colors, name, types and power/toughness of the card you put on top of the pile, and the combined abilities of ALL creature cards in the pile including any other mutators you add to it later
Every energy card you have in your deck gets that much better for every other energy card in your deck, and suddenly you find somewhere between twelve and sixteen spell slots already spoken for
Since you get to choose what card you discard, you can get rid of a GX or EX Pokemon in your hand, so there's no risk of it getting knocked out on the Bench, and Mewtwo and Mew-GX can take advantage of its attacks
Shine, sparkle, and "old" are not rarity
and if you manage to get your hands on any of the expensive options on this list, someone will always be willing to take them off your hands