pokemon legendary collection booster box sealed MINT Black & White BW11 Treasures PLUS Acrylic Ultra Pro Cache Box 2.0 Protector - Pokémon Product » Pokemon Booster Boxes Unboxing a 2002 Pokémon Legendary

This official evaluation process certifies a card's condition, quality, and authenticity, directly influencing its market value

Not unless they are already legal in the format (and the same is true for Pioneer)

Still another UG offering finds you buffing a Merfolk army, but maybe you prefer something more shocking like a 4 color Superconductors deck that plays with the Energy mechanic

This card is actually really interesting

It was just an artist making fan art

The contrast in growth demonstrates the difference in the power level of the preconstructed decks, but also speaks to their desirability as collector items