Gave my dad a call (He owned a hobby shop and did mass box openings back in the late 90’s / Early 2000s and he said if he remembers correctly this didnt happen often but jungle was the most common set for this to happen as it had some of the worst quality control, he said if he had to guess it was maybe 1 in 200 packs for jungle and 1 in 1000 for other wotc sets
I’ve definitely seen this happen before, but it’s been a while since I last saw a pack opening on Youtube with this error. I can’t remember who opened it though and it’s going to drive me nuts.
That is really exciting. But it would have sucked if there had been no holo in it. “Man, this pack is heavy, guaranteed holo… wait… an upside Meowth? Crap…”
Here it is. This is in the running for one of the best WOTC pack openings I’ve ever seen. Not only did the pack have an extra card that complimented the water theme but it was a double error pack, containing a No Symbol Vaporeon that ended up grading a 10.