TAHK0 speculated on why the error may have happened, writing, Poke Balls went through a lot of early variations, with everything from the button placement changing, to how it opens differing, to even being depicted with the white on top. It could be that an early Pok Ball design actually did open like it does on the card back, but when the design was eventually changed to the opposite way, they forgot to update it on the card back before going to print, and it remains that way to this day
Still watching others pull dozens of packs in a row while you can only save a little resources every day
Elemental frame cards appear in non-foil and traditional foil in Play Boosters and Collector Boosters
Both activated abilities are all about artifacts
All the Legendary Pokmon are pretty powerful, but in terms of pure raw stats, Arceus is the strongest