Hopefully, as it sticks around on The List for a little while longer, that can change before too long
These arent just normal secret rares with a different background (although they look fantastic too), They look completely different from anything in their respective sets
Its secondary ability Max Beating has a base damage of 130 but also allows the player to discard a maximum of three Grass-energy cards from Rillabloom, and deals an additional 50 damage for each of the discarded cards
Joseph Tobin noted that rarity in this case is "artificially created", and "effectively a form of gambling" in which children need to repeatedly purchase booster packs to get more rare cards
This proves that the person who possesses this card participated in the Secret Super Battle Best in Japan Deciding Match. Thanks, Bulbapedia
So lets take a look at all of the Magic: The Gathering booster pack types