They have some lovely synergies: Mewtwo has a super-powerful attack that requires you to dispose of two energy from it every time it's used, but Gardevoir, a third-stage evolution that takes just long enough to find and lay down to be somewhat balanced, has an ability that can be used from the bench, allowing you to attach one more Psychic energy to a Pokmon of your choice
Magic Presents: Chocobo Racing events Event Promos and Materials Squall, SeeD Mercenary and Ultima Standard Showdown promo provide one promo to the winner of each weekly Standard Showdown event
Like the Mega Gengar ex card mentioned earlier, this card was always intended to be the sets centerpiece as is shown by the fact that its set is named Wild Blazeafter Mega Charizard exs attack
This is the most generically good Red card for Cube in my opinion, as Red will always be putting creatures and artifacts into play
As you can see, Flowering of the White Tree is a major upgrade
Swap them in between games for some cards which seemed underwhelming in the first game