Not only because cards have realistically gotten as powerful as they can without becoming laughable, but because the Pokmon TCG has lost a lot of the strategy of lower-HP eras in favour of cage fights that are over in minutes
DeNA was the proponent behind Pokmon Masters EX, another successful mobile game under the Pokmon banner that was released in 2019
though just two were included in that set, Reshiram and Zekrom, they proved popular enough that they continued to return in larger numbers, in subsequent sets
For starters, its seeing play in pretty much all the same decks as Lightning
3 Rare Candy (Secret) $28.29 A Rare Sight Near The Top Rare Candy takes the crown for the most valuable non-Pokemon card in Guardians Rising, beating out multiple Energy, Items, and even Mallow on its path to the top three most expensive cards in the set
One of the easiest ways to do this is to look at some of the best performing decks in the format and invest in one of them