Magic: The Gathering in 2022 is still a truly incredible game with some of the best designs out there in terms of playability, lore and aesthetics, but if this game is a cash cow, its being milked dry at an alarming rate
There have been regular three mana green enchantments, which enable lands to produce two of any mana and give you another benefit
The artist would have to have access to original concept work from when these Pokemon were originally designed 20+ years ago and, knowing Japanese companies, theres a good chance it was all binned back in the day (it has been documented that this happened all the time with early Japanese videogame development and concept work in the 80s/90s as they didnt envision any of it having future significance or value)
Achilles, on the other hand, rewards you for going Assassin Tribal
It makes sense that Jin-Gitaxias, Progress Tyrant is in such high demand, as it can be a complete menace when used properly in-game