That kind of tempo swing is exactly why the deck became so dangerous
Even if Jigglypuff Promo-A doesn't fit in well with the Pikachu-EX deck, it's unlikely to improve the other decks to the point of overtaking the Electric deck
Ranking the top 10 most expensive Charizard cards of all time is an exercise in navigating through decades of Pokemon history, from the 1999 Base Set that launched the hobby through the EX, Diamond and Pearl, Black and White, XY, Sun and Moon, Sword and Shield, and Scarlet and Violet generations
So it provides defense and card advantage
Cards like The Locust God and Niv-Mizzet, Parun ensure you get more value from your extra cards than your opponents, and you can always punish them for drawing cards with Narset, Parter of Veils or Orcish Bowmasters
Yuffie usually has to settle for third place after Aerith and Tifa in Final Fantasy 7, but it seems her fans are in for some more disappointment