The rarest Pikachu card received the title of the most expensive Pokmon card ever sold
iirc at some duels and in the Challenge Cup he actually uses a bunch of beefy Haymaker Basics in conjunction with Chansey and Muk, pretty scary
The fact that there will be about 80 new cards in the Mythical Island expansion means that we're unlikely to see too much of a shakeup to the game's meta - there's already over 226 individual cards in the Genetic Apex set, not including the various Pokemon TCG Pocket Promo cards, so while we expect to see a lot of change in what decks are being played, it's not likely to be a complete rewrite of the established game
Making a rare Lotus Petal card irritates the fact that the base card is roughly $35 on the market right now, no matter how you look at it
1 I have not played Woodwraith Corrupter, Trestle Troll, Rites of Reaping, and Odious Trow.
Iconic White Mage Rosa from Final Fantasy IV gets a bit of an odd card here