I assume you are referring to the upside down Poke Ball foil? Though Iâm not sure what you mean by âonly oneâ Poke Ball being upside down, it might be helpful to add a picture if youâre able to figure out how.
The entire foil being upside down is a known error printing in Unseen Forces, and in my humble opinion itâs very cool! This error is not super uncommon to see either, and it can be found in all languages.
My Spanish Unseen Forces Slowbro happens to have upside down Poke Balls
Theyâre hard to get a good angle on without handling them/a good light source. The red background in the artwork makes it even harder⊠It especially doesnât help that itâs on a shim line, haha. I think it is red-half up.
Oh, no stress, if you ask me - they did it for one set only since even the factory had a hard time figuring out which way was up. You really have to manipulate each card to figure it out. I recently found 2 more upside down patterns while going through my singles again after buying a collection, haha.
Thank you for the solution, I appreciate it a lot, though if anything - I would give it to @Silphnaut since none of the other answers given would have been possible, haha!!