Even after folks banned a few cards to deal with it, it's there
Degraded Boss: The four masked GR trainers in the sequel are bosses in the first half of the game, who give out plot coupons upon defeat
The genres of "Pokemon TCG: Sword & Shield Silver Tempest Kirlia 40-Card Deck" are Gaming, and Tabletop Gaming
That's a real stretch, and now your opponent doesn't even have to pay for that creature's morph cost
Signatures can be annoying to verify, and not everyone is interested in them. And its not just artists who are known to sign cards, which makes it even more difficult to appropriately estimate a resale price for a signed card
The more mana you have, the more spells you can play during a turn cycle to prevent threats from hitting the table, taking them off the battlefield, or simply stealing them for yourself