On the one hand, it has one of the most gorgeous modern Pokemon cards in it: the Mega Charizard X ex Special Illustration Rare
It simply made our list because the artwork is too darn adorable
There are so many options it is virtually impossible for artificial intelligence to make accurate predictions.
Decree of Justice helped to make Mono-White Control a winner when it was printed, which I played heavily and even wrote a primer on it here ( You can wait until EOT, tap out and cycle for a ton of 1/1 and then you drew a card and it was hard to answer since you cannot counter a cycle since it wasn't cast
Because Nintendo is very strict with their security, not many sheets ever got out of the factory, opposed to WOTC ones
Right now, the only piece of evidence I see for the Topsun cards being first is based on a conversation Gary had 18 years ago and frankly even at the time it doesnt seem like Gary discovered anything particularly conclusive