is more than a trading card game from Japan - it's a huge and beloved media franchise that is expressed through not just the game, but also the many popular manga series, TV anime, and far more
Decks that can maximize this effect want it badly
There are also some notable reprints in the deck, including Commander's Plate, Shadowsper, Embercleave, and Chandra's Ignition
Whether you embrace change or hate it, this is the future of the Pokmon trading card game, and they've made migration easy enough that seasoned players should have no trouble making the move which they'll have to do anyway if they want to continue playing the game in digital/mobile form
The TLDR version is this: build a near-infinite engine to gain excellent card draw and play increasingly useful cards on early turns