As you gain more cards with each victory, it's necessary to keep improving your deck and creating new ones to counter specific opponents
Promo Star: If you found a Promo star on your card, that mean it was a featured/guaranteed card (that basically means it was displayed at the front of the box you opened) So technically, if you have a Promo star, its not rare, but its being featured probably means its a really strong card
You get it early enough after gym 4 and it evolves pretty much instantly into Sandslash
I barely collected any Shining Fates or Paldean Fates when those sets were current, because I just couldnt find them
In short: if a card is playable or nostalgic, it can command a premium even in reverse holo form
Card Name Mana Cost Type Legendary Creature Time Lord Doctor Rarity Rare rules Text I