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
You warp this in, play another land, and you suddenly have 8 power on board
In fact, crossover Dungeons & Dragons products like Adventures In The Forgotten Realms and Commander Legends: Battle For Baldur's Gate led to more Dragons being printed last year than perhaps any year before
Kynaios and Tiro of Meletis
Xerneas and Yveltal EX led the charge, and staples like Muscle Band and Professors Letter helped shape competitive play