I told you so, I tried warning people. The uncut wrapper sheets are also forgeries in my opinion. I am glad to see CGC put this out.
The disco cards had some very specific visually identifiable differences even without composition analysis.
For the cards:
- incorrect disco dot shape
- incorrect disco pattern
- incorrect art frame

- incorrect spelling “firest” on the bottom text

For the uncut sheets:
- incorrect copyright date ( on Australia sheet )
- incorrect energy symbols ( with potential matches found on Deviantart as free assets )
- incorrect difficulty seal
- incorrect fonts
- incorrect WOTC seal
- incorrect Nintendo seal
- incorrect colors
- and more