You see, a lot of the original cards that were printed feature Pokmon characters without shadows, hence the term shadowless and a 1st edition stamp
Over the years, prices of these cards have steadily increased
It should be a fun deck and perhaps the strongest grass type deck following Ascended Heroes while also being potentially viable in the format if its early success in Japan translates to the rest of the world
Speaking of foundational cards for your decks, you can also receive this double rainbow foil Sol Ring promo card while supplies last with the purchase of a Foundations Play Booster box or Collector Booster box
Raw vs Graded Pokmon Cards: Whats the Difference
As part of the Gamma Playtest series, this card predates the official Alpha release and was instrumental in shaping one of the Power Nine, some of the most legendary Magic cards ever printed