There are many reasons one might collect cards from the Scarlet & Violet era of the Pokmon TCG, first and foremost is the Terastal phenomenon, and return of 'ex' cards which adds a new, unique strategic consideration to the playing card game
As Flamewar, Streetwise Operative, it gains menace and deathtouch, making it harder to block and as well as more costly to throw creatures in front of it
Many a Magic: The Gathering card has been built up before release only to amount to nothing out in the real world
Canoptek Tomb SentinelCanoptek Tomb Sentinel can get in some decent damage, but thanks to vigilance and it's ability to exile a permanent if it enters from graveyard, it makes for a decent deterrent for attacks
As with any investment, its essential to approach this opportunity cautiously, educate yourself about the market, and consult with experts if possible