It may sound obvious, but there are a surprising number of differences between English and Japanese designs in Pokemon
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
It is fairly cheap, beats down reasonably well, draws you cards, and seems to fit right in to a proactive strategy
Simply pick another creature to enchant and begin your reign of terror again
The Absolute Justice deck released alongside Paramount War brought Black colored cards into play, as did Paramount War in general