I also slightly edited the pokeballs, with them being (from left to right) a premier ball, team plasma ball (based on a card), and a quick ball
The important detail, though, is that we know it takes roughly 100 boxes to get one specific foil and that means even if they sold 100,000 of these (more popular than any SL ever) thats only 1,000 copies of each foilfor now
Furthermore, third-party enthusiast sites like TCGplayer or even grading services such as Professional Sports Authenticator (PSA) have indexes that allow you to see, perhaps most importantly, the historical trends of raw and graded card prices
There have been no significant price movements lately for Myrel, which indicates cautious confidence
I had been a little familiar with these having played the video game previously so I had a rough idea where to start