Ok, so you have a card from one of the sets above, the next thing to look out for is the 1st edition symbol on the card
As long as there are strong Psychic attackers in the game, Gardevoir will remain one of the most powerful and strategic cards in the meta
They usually have holographic features, special art, or powerful abilities
Being a creature is an advantage here because you can guarantee its resolution with Cavern of Souls
Remember, your goal is to eliminate the seven stacks, so you want to put a lot of cards in the graveyard
While other colors may excel in creating elaborate and efficient engines (until you wipe them from existence), White likes efficiently committing resources to the board and using those resources to move the game along