In the context of Danger!, this is a good way to discard something like Danger
What I mean by that is that these are cards that require a way to physically track which rooms are unlocked in every game, and if you're using something like a die or a coin, those can be bumped onto the opposing room, making things a bit confusing in longer or more complex games
or who soul-read their opponents hand, card for card, the entire game
It is a great way to easily close out a game , as a 3000 ATK boost is nothing to scoff at
In a manner similar to minted coins, historic documents, and even Beanie Babies tags, there have been many Pokmon cards with errors and these errors have impacted the value of particular cards