In the mainline Pokmon games, Stufful made its debut in the Alola region, introduced in Pokmon Sun and Moon
In order to make a great investment, we want to invest in cards which have: Low sentiment Low metagame percentage (relative to potential) Low format interest in the formats they're played in (relative to potential) The last two points are related to the dynamics and trends in the Magic marketplace
Then Wizards gave it flash and let you cast it for free for some reason
"Why is the Spider-Man set is so small?"
Being able to forceably swap out your opponent's active Pokemon means you can pull someone back into the proverbial ring who's low on health and blast them to smithereens, or protect yourself from a terribly mighty upcoming strike, and so forth
If you're not familiar with Archenemy, it's a format where a team of three (or more) players goes up against one superpowered playerthe archenemywho is equipped with a deck full of schemes