For a more detailed breakdown on my experience, theres an article, too
It's definitely worth checking through those Pokemon cards stockpiled away in the cupboard there might be a slight defect on one or two of them, and the fun thing about error cards is that the range of errors is almost endless, and each error card is unique
Hey look, if I am going to take the time to write an article and you are going to take the time to read one, it should be different from the pack, right
It was so good it was quickly banned, and remains to this day illegal in Modern and Legacy
Weirdest of all are decks where your storm cards are simply a way to convert an otherwise non-lethal combo into a legitimate win condition
Collector Boosters if you prize premium finishes, seek specific high-value chase cards, plan to resell, or want guaranteed rares and foils