It slaughters aggro decks with loads of board presence, big things, cheap things, life gain, ongoing value and sweepers
Where Misty is the Trainer, Erikas Jigglypuff is the purest example of the eras other signature mechanic: Owners Pokmon, cards tied to a specific Gym Leader with that leaders name baked into the card
Stock your kitchen with cookware, bakeware, dishware, tools, gadgets, and small appliances like blenders and toaster ovens
It needs another creature in order to do so
I'm sure there are plenty of people out there who only care about the monetary aspects of it, and I'm sure rarity plays a part - after all, some of these cards will be 30 years old soon and that makes them naturally harder to find
While Doom Prevails